Error Message: Bucket creation failed

Error Description: This error occurs due to one of the following reasons:

Error Solution: To resolve this error:

Error Message: S3 key does not exist

Error Description: This error occurs if the required keys are not found in the S3 bucket.

Error Solution: To resolve this error, contact Support.

Error Message: No key present at specified to do multi-part upload

Error Description: This error occurs if the required keys are not present in the S3 bucket.

Error Solution: To resolve this error, contact Support.

Error Message: Specified bucket does not exist.

Error Description: This error occurs if the required S3 bucket is not present.

Error Solution: To resolve this error, contact Support.

Error Message: Attached policy do not have sufficient permissions.

Error Description: This error occurs if the attached AWS IAM policy does not have sufficient permissions.

Error Solution: To resolve this error:

Error Message: VMDK size is greater than 2 TB.

Error Description: This error occurs if the Cloud DR configured virtual machine has more than 2 TB size of VMDK.

Error Solution: Ensure that the maximum VMDK size does not exceed 2 TB.

Error Message: OS is not supported in AWS.

Error Description: This error occurs if cloud DR configured virtual machine is not supported in AWS.

Error Solution: Check the supported OS matrix in AWS documentation.

Error Message: Marking cloud DR request as stale.

Error Description: This error occurs if:

Error Message: VM is not valid to create AMI.

Error Description: This error occurs when AWS import image operation fails.

Error Solution: To resolve this error:

Error Message: boto/boto3 has raised unauthorized operation error.

Error Description: This error occurs if the attached AWS IAM policy does not have sufficient permissions.

Error Solution: To resolve this error:

Error Message: Unable to access AWS resources, check IAM policy.

Error Description: This error occurs if the attached AWS IAM policy does not have sufficient permissions.

Error Solution: To resolve this error:

Error Message: Unable to read file. Please retry later.

Error Description: This error occurs if the AWS API call fails due to the failure of the EC2 metadata service.

Error Solution: To resolve this error, verify that the content of the IAM policy attached to the IAM role matches the content defined in the DruvaIAMPolicy topic.

Error Message: EBS Volume storage limit is exceeded.

Error Description: This error occurs if the limit of the Amazon EBS volume storage is reached.

Error Solution: To resolve this error, check the limit of the AWS account storage. Ensure that the total size of all the virtual machines configured in the DR plan does not exceed the maximum AWS account storage limit. For more information, see Amazon EC2 service limits. [External link to AWS documentation].

Error Message: EBS Volume is attached to an instance.

Error Description: This error occurs:

Error Solution: To resolve this error, check if the volume is used by an EC2 instance other than the Druva AWS proxy.

Error Message: EBS Recovery point creation limit is reached.

Error Description: This error occurs if the limit for creating the number of the Amazon EBS recovery points is reached.

Error Solution: To resolve this error, check the maximum number of EBS recovery points that can be created in the AWS account. For more information, see Amazon EC2 service limits. [External link to AWS documentation].

Error Message: Rate limit for creating concurrent recovery points of an EBS Volume has been exceeded.

Error Description: This error occurs if the rate limit for creating concurrent recovery points of an EBS volume is reached.

Error Solution: To resolve this error, check the number of the multiple recovery points of the same EBS volume created. For more information, see Amazon EC2 service limits. [External link to AWS documentation].

Error Message: Amazon EC2 Resource Limit exceeded.

Error Description: This error occurs if the limit of the AWS EC2 resource is reached.

Error Solution: To resolve this error, check the maximum number of EC2 instances that can be created in the AWS account. For more information, see Amazon EC2 service limits. [External link to AWS documentation].

Error Message: The number of pending EBS recovery point has exceeded the limit.

Error Description: This error occurs if the limit of the number of pending AWS EBS recovery points is reached.

Error Solution: To resolve this error, check the limit of the maximum pending EBS recovery points allowed in the AWS account. For more information, see Amazon EC2 service limits. [External link to AWS documentation].

Error Message: The specified volume does not exist.

Error Description: This error occurs if the specified EBS volume is not present in the AWS account at the time of failover.

Error Solution: To resolve this error, check if the volume that is used by the Druva AWS proxy, is present in the AWS account.

Error Message: The specified recovery point does not exist.

Error Description: This error occurs if the specified EBS recovery point is not present in the AWS account at the time of failover.

Error Solution: To resolve this error, check if the recovery point that is used by the Druva AWS proxy, is deleted.

Error Message: The recovery point that you are trying to delete is in use by one or more AMIs.

Error Description: This error occurs if the deletion of the specified EBS recovery point fails because the recovery point is associated with one or more AMIs.

Error Solution: To resolve this error, check if the recovery point is present in the AMI.

Error Message: The specified EBS volume is not attached to an instance.

Error Description: This error occurs if the specified volume fails to attach to an EC2 instance.

Error Solution: To resolve this error, check the total number of EBS volumes attached to the EC2 instance. The number should be less than 22 including the boot volume.

Error Message: The specified Amazon S3 URL cannot be accessed.

Error Description: This error occurs if the specified AWS S3 URL cannot be accessed due to insufficient permissions.

Error Solution: To resolve this error, check if the content at the S3 URL exists and has sufficient access permissions. Ensure that the IAM policy attached to the Druva AWS proxy matches the policy downloaded from the Management Console.

Error Message: The number of concurrent recovery points has exceeded the limit.

Error Description: This error occurs if the limit of creating the concurrent AWS EBS recovery points on a specified AWS EBS volume is reached.

Error Solution: To resolve this error, check the limit of the maximum concurrent recovery points in the AWS account. For more information, see Amazon EC2 service limits. [External link to AWS documentation].

Error Message: The number of EBS volume attached to an instance has exceeded the limit.

Error Description: This error occurs if the limit of attaching the number of AWS EBS volumes to an EC2 instance is reached.

Error Solution: AWS supports only 22 volumes. To resolve this error, detach any of the volumes excluding the boot volume. Perform the backup and DR restore again.

Error Message: No device is available for attaching EBS volume.

Error Description: This error occurs if a device is not available for attaching the AWS EBS volume to the EC2 instance.

Error Solution: To resolve this error, check if the recently detached EBS volumes are completely detached. If the EBS volume is in the detaching state, the device later is unusable. Restart the Druva AWS proxy, if no jobs are running.

Error Message: AMI doesn't exist.

Error Description: This error occurs if the AMI for failover is not present in the AWS account.

Error Solution: To resolve this error, check if the AMI for failover is available in the specified region of the AWS account. Run the update DR copy/DR restore job for the virtual machine to get a new DR copy and retry the failover job.

Error Message: Retry limit exceeded for volume state.

Error Description: This error occurs if the specified EBS volume is not in the valid state for a long time.

Error Solution: To resolve this error, trigger a new update DR copy/DR restore job.

Error Message: Attempted to create more buckets than allowed.

Error Description: This error occurs if the limit of creating the number of AWS S3 buckets in the AWS account is reached.

Error Solution: To resolve this error, check the limit of creating the number of S3 buckets in the AWS account. Increase the limit of the number of S3 buckets. For more information, see Amazon S3 service limits. [External link to AWS documentation].

Error Message: Incorrect recovery point state

Error Description: This error occurs if the recovery point creation of the specified EBS volume fails because the recovery point is in the error state.

Error Solution: To resolve this error, trigger a new update DR copy/DR restore job.

Error Message: The request reached the service more than 15 minutes after the date stamp on the request.

Error Description: This error occurs if the AWS API call expires due to the unsynchronized system time or delay in reaching in the AWS server.

Error Solution: To resolve this error, check if the Druva AWS proxy time is in sync with the NTP server.

Error Message: A queue with this name/URI already exists.

Error Description: This error occurs if an SQS queue with the same name already exists.

Error Solution: To resolve this error, check if an SQS queue with the same name is created. If the queue is not created by Druva, delete the queue. The queue that Druva uses starts with the phrase: phoenix_.You can use this phrase to search for the queue.

Error Message: The specified queue doesn't exist.

Error Description: This error occurs if the required SQS queue is not present in the AWS account. The queue that Druva uses starts with the phrase: phoenix_.You can use this phrase to search for the queue.

Error Solution: To resolve this error, check if the SQS queue got deleted from the AWS account and run a new failover job.

Error Message: You do not have sufficient access to perform this action.

Error Description: This error occurs if insufficient permissions are assigned to an IAM role.

Error Solution:To resolve this error, Verify that the content of theIAMpolicy attached to theIAMrole matches the content defined in the DruvaIAMPolicy topic.

Error Message: The request has failed due to a temporary failure of the server.

Error Description: This error occurs if the AWS API call fails due to a temporary failure of the AWS server.

Error Solution: To resolve this error, retry the job.

Error Message: The request was denied due to request throttling.

Error Description: This error occurs if the AWS SQS API call is throttled by the AWS server.

Error Solution: To resolve this error, check the limit of the SQS requests handled by AWS. For more information, see Amazon SQS Limits. [External link to AWS documentation.]

Error Message: Not enough free addresses in the subnet.

Error Description: This error occurs if the VPC subnet selected for failover does not have a free IP address.

Error Solution: In the AWS Management console, determine the number of available IP addresses in the selected VPC subnet. If the VPC subnet does not have any free IP addresses, terminate a few EC2 instances. Alternatively, select a different VPC subnet in the failover settings of your virtual machine.

Error Message: VMDK size greater than 16 TB is not supported.

Error Description: This error occurs if the DR configured virtual machine has a VMDK with size more than 16 TB.

Error Solution: Ensure that the size of the VMDK attached to the virtual machine configured for DR does not exceed 16 TB.

Error Message: Security Group reconfiguration failed.

Error Description:AWS allows a maximum of five security groups to be assigned per EC2 instance by default. When the number of security groups assigned to the VM in the failover settings of the DR plan exceeds this maximum value, you may run into this issue. The failover succeeds, but the security group reconfiguration fails.

Error Solution: Ensure that the number of security groups assigned to the VM in the failover settings is lesser than the maximum value defined for your AWS account. Contact AWS support if you want to increase the maximum number of security groups you can assign per EC2 instance.

Error Message: Security group reconfiguration failed.

Error Description:You may run into this error if the security group does not exist.

Error Solution: The security group does not exist in the specified network or VPC. Check the VM failover settings and the network mapping settings to ensure that the security group belongs to the same network or VPC.

Error Message:AWS was not able to validate the provided access credentials. The authentication with Boto APIs failed possibly due to the following reason:

-System time of DR Proxy EC2 Instance not synchronized with AWS NTP Servers

Error Description: This error occurs when the Druva AWS proxy instance is out of sync with the AWS NTP servers.

Error Solution: To resolve this error synchronize the system time on the Druva AWS proxy instance with the AWS NTP servers using the following command sudo ntpdate 169.254.169.123

Error Message:Unable to locate Credentials.

Error Description: The Druva IAM role is attached to the Druva AWS proxy during its deployment. You may run into this error during a DR copy job if, for some reason, this role gets detached from the Druva AWS proxy.

Error Solution:

Identify the Druva AWS proxy used during the DR Restore job (Also referred to as DR copy job). Attach the Druva IAM role to this proxy using the AWS Management Console. Perform the following tasks to accomplish this:

Select the DruvaIAMRolePL role from the drop-down list, and then click Save.

Error Message:Could not connect to EC2 endpoint URL

Error Description: This error occurs when the Druva AWS proxy cannot access the AWS EC2 service.

Error Solution: To resolve this issue,

Error Message:Could not connect to S3 endpoint URL

Error Description: This error occurs when the Druva AWS proxy is unable to access the AWS S3 service.

Error Solution: If you have an AWS S3 endpoint in the VPC, ensure that the route table of the Druva AWS proxy's subnet is associated with the AWS S3 endpoint. If you have not configured an AWS S3 endpoint in your VPC then ensure that the {[drproxy}} is able to reach AWS S3 service via internet/NAT gateway.

Error Message: Generic AWS error.

Error Description: This error occurs if the AWS API call fails due to a generic error.

Error Solution: See the Management Console for error details and contact Support.

Error Message: Phoenix Internal Error.

Error Description: This is an internal error.

Error Solution: To resolve this error, contact Support.

Error Message: Phoenix Internal Error.

Error Description: This is an internal error.

Error Solution: To resolve this error, contact Support.

Error Message: Insufficient space to write on the EBS volume.

Error Description: This error occurs when the EBS volume does not have adequate space for the DR copy data.

Error Solution: To resolve this error, retry the DR copy job. For further assistance, contact support.

Error Message: Phoenix Internal Error.

Error Description: This is an internal error.

Error Solution: To resolve this error, contact Support.

Error Message: Phoenix Internal Error.

Error Description: This is an internal error

Error Solution: To resolve this error, contact Support.

Error Message: DR Restore not supported.

Error Description: This error occurs if:

Error Solution: Ensure that the disk is not excluded from the backup of the virtual machine.

Error Message: Update DR copy/DR Restore job skipped since the Druva AWS proxy associated with the job is disconnected.

Error Description: This error occurs if the DR restore job is skipped because the Druva AWS proxy associated with the job is disconnected.

Error Solution: Ensure that the Druva AWS proxy with version 4.8.0 or later is connected to Cloud.

Error Message: Last DR Restore of the VM is running on a Druva AWS proxy which is unavailable.

Error Description: This error occurs when an update DR copy/DR restore job is already running and you run another DR restore job.

Error Solution: You must manually cancel the first DR restore job of a virtual machine for which the associated Druva AWS proxy is disconnected.

Error Message: Can not start DR restore. No upgraded Druva AWS proxy available for server, Please upgrade.

Error Description: This error occurs when the Druva AWS proxy is in the disconnected state and the DR restore operation fails.

Error Solution: Ensure that the Druva AWS proxy is up and running during the DR restore operation. Ensure that at least one Druva AWS proxy with 4.8.0 or later is connected to the Cloud.

Error Message: VM removed from DR plan.

Error Description: This error occurs when a virtual machine is deleted from the DR plan for which the DR restore job is in progress.

Error Solution: To resolve this error, ensure that the virtual machine is configured for the DR plan.

Error Message: Transient error occurred, Please retry restore job again.

Error Description: This transient error occurs if the Druva AWS proxy is reconnecting to the Druva server while copying the data to the Druva S3 bucket.

Error Solution: To resolve the error, retry the Update DR Copy (DR restore) job.

Error Message: DR Restore job skipped as we have upgraded proxy deployed.

Error Description: This error occurs if you deploy the proxy version 4.8.0 or later but:

Error Solution: Only older queued jobs fail. New update DR copy (DR restore) jobs run on the Druva AWS proxy version 4.8.0 or later.

Error Message: DR Restore marked as skipped as new restore request received for same DR Plan and VM.

Error Description: This error occurs when multiple DR restore jobs are triggered for the same DR plan and the same virtual machine. In this case, the last triggered job is processed and all the previous jobs are marked as skipped.

Error Message: DR Running Restore job's timeout & expired.

Error Description: This error occurs when a DR restore job, which is currently in the running state, exceeds the timeout period of 3 days and expires due to the unavailability of the Druva AWS proxy.

Error Solution: To resolve the error, ensure that the Druva AWS proxy is connected to the Cloud.

Error Message: Write failed on the EBS volume.

Error Description: This error occurs when the DR copy job is unable to write to the EBS volume because of an IO error.

Error Solution: To resolve this error, retry the DR copy job.

Error Message: No Bootable disk found.

Error Description: This error occurs if the bootable disk is not found during the instance boot because of the following reasons:

Error Solution: To resolve the error:

Error Message: Instance is not reachable from AWS SQS.

Error Description: This error occurs when the failover instance cannot reach AWS SQS.

Error Solution: To resolve this error:

Error Message: OS is not supported.

Error Description: This error occurs if Druva does not support the operating system of the virtual machine that you want to configure for disaster recovery.

Error Solution: To resolve this error, ensure that you configure virtual machines for disaster recovery whose operating systems are supported by Disaster Recovery. For more information, see Support matrix.

Error Message: Agent: failed to start failover.

Error Description: This error occurs if the Druva AWS proxy fails to update the instance status for the virtual machine. See the client logs for more details.

Error Solution: To resolve this error, check the client logs for details. Contact Support.

Error Message: Requested failover job was running for more than 24 hrs. Marking it as failed.

Error Description: This error occurs if the failover instance is in the requested or initializing state for more than 24 hours. This occurs when the Druva AWS proxy abruptly exits and fails to update the instance status on the server.

Error Solution: To resolve this error:

Error Message: Failover failed for all VMs in DR plan.

Error Description: This error occurs if the failover fails for all the virtual machines associated with a DR plan.

Error Solution: To resolve this error, check the job summary details.

Error Message: DR copy on the customer's AWS account was never created.

Error Description: This error occurs if the DR restore was never triggered for the virtual machine.

Error Solution: To resolve this error, trigger update DR copy (DR restore) for the virtual machine.

Error Message: DR copy using the Druva AWS proxy version 4.8.0 or later was never created.

Error Description: This occurs when the first DR restore job is triggered for the virtual machine but the job ends abruptly or it expires.

Error Solution: To resolve this error, run the update DR copy (DR restore) job for the virtual machine.

Error Message: DR copy using the Druva AWS proxy version 4.7.6. or earlier was never created.

Error Description: This occurs when the DR restore job is triggered for the virtual machine but the job ends abruptly or it expires.

Error Solution: To resolve this error, run the update DR copy (DR restore) job for the virtual machine.

Error Message: Selected VM is unconfigured from the DR plan.

Error Description: This error occurs if the virtual machine gets unconfigured from the DR plan while triggering the DR failover.

Error Solution: To resolve this error, check if the virtual machine is configured for disaster recovery.

Error Message: Selected VM's backup set is deleted.

Error Description: This error occurs if the backup set associated with a virtual machine is deleted while triggering the DR failover.

Error Solution: To resolve this error, check if the virtual machine is configured for backup.

Error Message: One or more VM's failover failed in DR plan.

Error Description: This error occurs if the failover triggered for the virtual machine fails.

Error Solution: To resolve this error, check the summary details of the failover job.

Error Message: Current proxy is incompatible to do failover. If DR copy is updated using Druva AWS proxy version 4.8.0 or later, need Druva AWS proxy version 4.8.0 or later for failover.

Error Description: This error occurs if the virtual machine is restored using the latest proxy and has the EBS recovery point, however, the failover is triggered on the virtual machine with the older proxy.

Error Solution: To resolve this error, ensure that the latest Druva AWS proxy is connected.

Error Message: Failover got aborted as recovery workflow step is failed.

Error Description: This error occurs when the recovery workflow stops at a particular step due to the failure of that step. For example, if an error occurs during the execution of a post-boot script, and you have enabled the checkboxes to abort failover on the failure of the VM Boot and script execution steps for the virtual machine, the recovery workflow fails.

Error Solution: To resolve this error, disable the Abort recovery operation if any VM in this boot step fails to boot checkbox to continue the workflow execution. Else, correct the respective script for the virtual machine.

Error Message: Failed to reconfigure security group.

Error Description: This error occurs if the association of the security group to the failover instance during failover fails.

Error Solution: Contact Support.

Error Message: Failed to change IAM role of the failed over instance.

Error Description: This error occurs if the association of the IAM role to the failover instance during failover fails.

Error Solution: Contact Support.

Error Message: Phase-1 of VM conversion into AWS EC2 instance is timed out.

Error Description: This error occurs when an AWS driver ingestion for converting a virtual machine into an AWS EC2 instance exceeds the expected time.

Error Solution: To resolve this error, perform the following:

Error Message: Phase-2 of VM conversion into AWS EC2 instance is timed out.

Error Description: This error occurs when an AWS driver ingestion for converting a virtual machine into an AWS EC2 instance exceeds the expected time.

Error Solution: To resolve this error, perform the following:

Error Message: Phase-3 of On-Boot script execution timed out.

Error Description: This error occurs if the script timeout specified is less than the actual time taken for the script execution.

Error Solution: To resolve this error, perform the following steps:

Error Message: Failover instance is not moving into the running state.

Error Description: This error occurs if the EC2 instance is stuck in the pending state although the failover operation is completed.

Error Solution: To resolve this error, verify the state of the EC2 instance on the AWS Management Console. If the state of the instance is stuck in the pending state beyond 10 minutes, restart the EC2 instance.

Error Message: Failed to resume Failover. Please retry Failover for the specified VM.

Error Description: This error occurs if the client got restarted and the failover could not be resumed for the virtual machine.

Error Solution: To resolve this error, you can retry failover for the virtual machine by selecting the individual virtual machine on the Production or Test Failover page.

Error Message: Server: Internal Error.

Error Description: This error occurs if the Cloud failed to run the job.

Error Solution: Contact Support.

Error Message: System command required for conversion not found.

Error Description: This error occurs if one of the system commands required for the conversion is not found on the source virtual machine.

Error Solution: To resolve this error, check the error text on the Management Console. If the command is not found on the source virtual machine:

📝 Note

​ Commands that are needed on the virtual machine are basic system commands such as blkid, mount, mkinitrd etc.

Error Message: No space is left on the failover EC2 instance.

Error Description: This issue occurs when the failover EC2 instance does not have the required storage space.

Error Solution: For a successful DR failover, make sure that more than 2 GB free space is available on the failover EC2 instance.

Error Message: Command timed out during execution.

Error Description: This error occurs if one of the commands required for the conversion took more time than expected.

Error Solution: To resolve this error, run the command on the source virtual machine. If the command execution is stuck, resolve the command execution.

Error Message: Failed to access mount point.

Error Description: This error occurs if one of the mount points on the virtual machine is not accessible.

Error Solution: Verify if the NFS/CIFS mounts mentioned in the /etc/fstab file are working on the source virtual machine. Remove the access points which are inaccessible.

Error Message: Network configuration failed

Error Description: This error occurs when your network configuration fails.

Error Solution: Contact Support.

Error Message: The kernel module specific for the version cannot be found.

Error Description: This error occurs if the kernel module compatible with the virtual machine kernel version is not found.

Error Solution: To resolve this error, check if the kernel version on the source virtual machine is a stable version. Else, upgrade the kernel version to a stable version.

Error Message:Failed to install grub2

Error Description: This error occurs when the grub installation on the virtual machine fails as the grub legacy or grub2 is not installed on the virtual machine.

Error Solution: To resolve this error, check if the grub package is not installed on the virtual machine and the automatic installation fails on the source virtual machine. Install grub2 on the source system manually.

Error Message: VM has no grub (grub-legacy or grub2) installed.

Error Description: This error occurs if the grub legacy or grub2 package is not installed on the virtual machine.

Error Solution: To resolve this error, ensure that grub-legacy or grub2 is installed on the source virtual machine. Else, install the grub package on the source virtual machine.

Error Message: No Space is left on the failback virtual machine.

Error Description: This issue occurs when the failback virtual machine does not have the required storage space.

Error Solution: For a successful DR failback, make sure that more than 1 GB free space is available on the failback virtual machine.

Error Message: Execution was possibly blocked by the anti-virus

Error Description: This error occurs if the required command execution is blocked by antivirus on the virtual machine.

Error Solution: To resolve this error, either whitelist the command execution, or disable the antivirus, or uninstall the anti-virus on the source virtual machine, and then:

Error Message: EBS volume is corrupted.

Error Description: This error occurs if one or more EBS volumes on the virtual machine are corrupted.

Error Solution: To resolve this error, run the fsck command on the source virtual machine and check for the errors or any unusual output.

Error Message: Unsupported partition type - MS shadow copy partition.

Error Description: This error occurs if the MS Shadow Copy partition is present in the virtual machine. Druva disaster recovery does not support disks with MS Shadow Copy partition.

Error Solution: To resolve this error, remove the drive with the MS Shadow partition.

Error Message: The disk for volume with the assigned drive letter could not be brought online.

Error Description: This error occurs if the disk cannot be brought online.

Error Solution: To resolve this error, bring the disk online manually on the source virtual machine.

Error Message: System volume was not found on any of the attached disks.

Error Description: This error occurs if the system volume information is not found on the virtual machine.

Error Solution: To resolve this error, check if the system volume is present on the source virtual machine.

Error Message: Registry folder was not found on any of the attached disks.

Error Description: This error occurs if the registry folder should is not present on the virtual machine.

Error Solution: To resolve this error, check if the registry folder exists on any of the volumes of the attached disks.

Error Message: FileSystem type is not supported.

Error Description: This error occurs if the FileSystem type of one of the volumes is not supported.

Error Solution: To resolve this error, ensure that Disaster Recovery supports the FileSystem type. For more information about the supported FileSystem Types, see Disaster Recovery Support matrix.

Error Message: Unable to identify partition using parted command.

Error Description: This error occurs if the parted command is unable to identify the disk partition of the virtual machine.

Error Solution: To resolve this error, run the parted command manually and check for any unusual output on the source virtual machine.

Error Message: AWS API Call Error.

Error Description: This error occurs if the failover instance fails to call the AWS S3 or SQS APIs that are required for failover.

Error Solution: To resolve this error, check if the failover instance has enough permissions of EC2, S3, and SQS. Check the IAM policy associated with the failover instance.

Error Message: S3 Bucket does not exist or no permission to access.

Error Description: This error occurs if the failover instance does not have sufficient permissions to connect to the AWS S3 bucket.

Error Solution: To resolve this error, check if the failover instance has enough permissions of AWS S3. Check the IAM policy associated with the failover instance.

Error Message: Not all drive letters were mounted

Error Description: This error occurs if one or more drives fail to mount during failover.

Error Solution: To resolve this error, check manually if any drive is not mounted on the source virtual machine. Else, mount the drive.

Error Message: Generic Error occurred during attribute collection

Error Description: This error occurs if an incorrect attribute is collected during failback.

Error Solution: Contact Support.

Error Message: Failed to collect information of network interfaces as mandatory commands might be missing

Error Description: This error occurs if Druva fails to collect the network interface information on the source virtual machine due to missing commands. For example, due to missing ip or ifconfig commands, the backup proxy fails to collect the NIC details.

Error Solution: To resolve the error, check if all the NIC commands are working. Else, contact Support.

Error Message: User is not allowed to execute command

Error Description: This error occurs if Druva fails to execute a command on the source virtual machine due to insufficient privileges of the user.

Error Solution: To resolve this error, check if the user is able to log into the source EC2 instance and can run the sudo command. For more information on creating a sudo user and enabling SSH access to the user, refer to the following documentation:

Error Message: User is not allowed to run sudo on host

Error Description: This error occurs if the configured user is not allowed to run the sudo command on the source virtual machine.

Error Solution: To resolve this error, check if the user is able to log into the source EC2 instance and can run the sudo command. For more information on creating a sudo user and enabling SSH access to the user, refer to the following documentation:

Error Message: User is not in sudoers file

Error Description: This error occurs if the configured user is not listed in sudoers file.

Error Solution: To resolve this error, check if the user is able to log into the source EC2 instance and can run the sudo command. For more information on creating a sudo user and enabling SSH access to the user, refer to the following documentation:

Error Message: requiretty is not disabled in sudoers file

Error Description: This error occurs if requiretty is enabled for a command or the specified user is not available in the sudoers file.

Error Solution: To resolve this error, disable requiretty on the source EC2 instance and try again.

Error Message: Failed to collect OS CPU information

Error Description: This error occurs if Druva fails to collect the CPU information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following:

Error Message: Failed to collect OS hardware information

Error Description: This error occurs if Druva fails to collect the operating system hardware information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following:

Error Message: Failed to collect OS memory information

Error Description: This error occurs if Druva fails to collect the operating system memory information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following:

Error Message: Failed to collect OS dhcp information

Error Description: This error occurs if Druva fails to collect the network information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following:

Error Message: Failed to collect OS hostname

Error Description: This error occurs if Druva fails to collect the operating system hostname information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to collect OS architecture information.

Error Description: This error occurs if Druva fails to collect the operating system architecture information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message:Failed to collect OS kernel information

Error Description: This error occurs if Druva fails to collect the operating system kernel information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to collect OS attributes collection

Error Description: This error occurs if Druva fails to collect the operating system attributes from the source virtual machine during failback.

Error Solution: Contact Support.

Error Message: Failed to collect OS release data

Error Description: This error occurs if Druva fails to collect the operating system release information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to collect OS lvm information

Error Description: This error occurs if Druva fails to collect the operating system logical volume details from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to collect OS storage information

Error Description: This error occurs if Druva fails to collect the operating system storage information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to collect OS mount information

Error Description: This error occurs if Druva fails to collect the operating system mount information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to collect OS disk information

Error Description: This error occurs if Druva fails to collect the operating system disk information from the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed during attribute collection

Error Description: This error occurs if an unexpected issue occurs during attribute collection from the source virtual machine. Or the virtual machine is not compatible. See the Support Matrix.

Error Solution: Contact Support.

Error Message: Failed to collect OS filesystem information

Error Description: This error occurs if Druva fails to collect the filesystem information on the source machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Cache Logical Volumes were found on the source

Error Description: This error occurs if the Cache Logical Volumes are found on the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Recovery point Logical Volumes were found on the source

Error Description: This error occurs if Recovery point Logical Volumes are found on the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Thin Logical Volumes were found on the source

Error Description: This error occurs if Logical Volumes are found on the source virtual machine during failback.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to disable services of source cloud

Error Description: This error occurs if a failure occurs while disabling the cloud-specific service on the source virtual machine during failback.

Error Solution: Contact Support.

Error Message: Failed to disable VMware timesync plugin

Error Description: This error occurs if Druva fails to disable the VMware timesync plugin while converting the source virtual machine into the target virtual machine.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to install VMware tools.Not enough free disk space

Error Description: This error occurs if the installation of the VMware tools on the target virtual machine fails due to insufficient disk space on the virtual machine.

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to install VMware tools probably due to missing dependencies

Error Description: This error occurs if the installation of the VMware tools on the target virtual machine fails due to some dependencies.

Error Solution: Contact Support.

Error Message: WMI query failed

Error Description: This error occurs due to multiple reasons when queries to wmi fail.

Error Solution: To resolve this error, refer to the following documentation:

Error Message: Admin share cannot be found

Error Description: This error occurs if the SMB/admin share of the source EC2 instance is not reachable.

Error Solution:

📝 Note

​ We recommend running DR Failback Checks using VMware backup proxy of version 6.0.4 or later before triggering the DR Failback job.

To verify the access the SMB share, run the <ip-of-ec2>/Admin$ command on in the Windows > Run field from any Windows computer.

If the access is denied, perform the following steps on the failover instance:

Error Message: Source Component has failed

Error Description: This error occurs if any source component fails.

Error Solution: To resolve this error, contact Support.

Error Message: Failed to connect to the source

Error Description: This error occurs if a backup proxy fails to connect to the EC2 instance, which is selected for failback.

Error Solution: To resolve this error, perform the following:

Error Message: Failed to connect to the source, credentials are invalid

Error Description: This error occurs if you provide invalid credentials of an EC2 instance while initiating a failback.

Error Solution: To resolve this error, perform the following:

Error Message: Failed to connect to the source, share not available

Error Description: This error occurs if the source virtual machine is not reachable from the target virtual machine or the SMB service is not accessible from the target virtual machine.

Error Solution: Contact Support.

Error Message: Failed to match volume serial number

Error Description: This error occurs if Druva fails to map the source machine devices to target machine devices.

Error Solution: Contact Support.

Error Message: Failed to execute Win32_ShadowStorage WMI query

Error Description: This error occurs when Druva fails to collect the hardware information of the operating system.

Error Solution: Contact Support.

Error Message: VMware tools installation failed to install vmtools service

Error Description: This error occurs if the installation of VMware tools fail on the target virtual machine.

Error Solution: Contact Support.

Error Message: Recovery point on one or more volumes failed - there is not a sufficient storage available for recovery point creation

Error Description: This error occurs if the source EC2 instance does not have enough storage space to create a recovery point.

Error Solution: Contact Support.

Error Message: Volume size mismatch detected. One or more source volumes were resized, data transfer cannot continue

Error Description: This error occurs if the size of one or more volumes is changed on the EC2 instance when a failover job is running.

Error Solution: To resolve this error, perform the following actions:

Error Message: One of volumes selected for data transfer does not exist on source any more

Error Description: This error occurs if one or more volumes are removed, deleted, or unmounted from the EC2 instance when a failover job is running.

Error Solution: To resolve this error, perform the following actions:

Error Message: Partition creation failed

Error Description: This error occurs if Druva fails to create partitions on the target virtual machine similar to that on the source virtual machine

Error Solution: Contact Support.

Error Message: Recovery point was deleted on the source

Error Description: This error occurs if one or more recovery points used by the Hybrid Workloads agent is deleted on the source virtual machine due to insufficient VSS space.

Error Solution: Contact Support.

Error Message: Failed to read volume

Error Description: This error occurs if Druva fails to read one of the volumes present on the source virtual machine.

Error Solution: Contact Support.

Error Message: Failback already running on source

Error Description: This error occurs if Druva identifies another failback process running on the source virtual machine.

Error Solution: Contact Support.

Error Message: Failed to take VSS Recovery point set of selected volumes

Error Description: This error occurs if Druva fails to take VSS recovery point on the source virtual machine because one of the failed VSS writers.

Error Solution: Contact Support.

Error Message: The target worker instance did not configure properly

Error Description: This error occurs if the target virtual machine fails to parse data correctly.

Error Solution: Contact Support.

Error Message: Unable to shutdown source

Error Description: This error occurs if Druva fails to shut down the source virtual machine.

Error Solution: Contact Support.

Error Message: Failed to find /etc/fstab

Error Description: This error occurs if /etc/fstab could not be located on the source EC2 instance.

Error Solution: To resolve this issue, ensure that /etc/fstab is present on the source EC2 instance to failback.

Error Message: Failed to find device or file-system mentioned in /etc/fstab

Error Description: This error occurs if the devices or file system specified in /etc/fstab is not present on the source EC2 instance.

Error Solution: To resolve this issue, verify that the devices and the file system specified in the /etc/fstab file is present on the source EC2 instance.

Error Message: No file system is set to be mounted at /

Error Description: This error occurs occur if no file system is mounted at root.

Error Solution: To resolve this error, check manually if the file system is mounted on the source EC2 instance. Else, mount the files ystem.

Error Message: Destination host is not routable or cannot be resolved.

Error Description: This error can occur during a DR failback if the failover EC2 instance has stopped, terminated, or is not reachable from the failback VM. This error can occur during DR Failback Checks if the failover EC2 instance has stopped, terminated, or is not reachable from the VMware backup proxy.

📝 Note

​ This message is displayed as a warning in DR Failback Checks where the VMware backup proxy is version 6.0.4.Here we are checking connectivity to the failover EC2 instance via the VMware proxy network.

Error Solution: To resolve this error, ensure that:

Error Message: Failed to start conversion service on source machine due to failed dependencies or service getting blocked by Anti-Virus

Error Description: This error occurs if the source EC2 instance has some dependencies missing or services blocked by the antivirus.

Error Solution: To resolve this error, whitelist the command execution or disable the antivirus, or uninstall the anti-virus on the source EC2 instance. Also, ensure all the dependencies are present.

Error Message: Credentials are invalid

Error Description: This error occurs if the source EC2 instance credentials are invalid.

Error Solution: To resolve this error, ensure that the source EC2 instance credentials are valid.

Error Message: OS present on source machine is not supported

Error Description: This error occurs if the operating system of the source EC2 instance is not supported for failback support matrix.

Error Solution: To resolve this error, please check if the operating system of the source EC2 instance is supported for failback. See Support matrix.

Error Message: SSH pwauth is disabled in the cloud_init file. If you proceed you might not be able to login to the target instance/VM.

Error Description: You may get this warning during DR failover or DR failback. The following configurations in the cloud_init file may cause issues with the login:

Error Solution: To resolve this error, enable SSH pwauth and disable the lock password in the cloud-init file on the source EC2 instance.

Error Message: Source does not have enough free space on {mountpoint}. Minimum 1757.81 Mb space is required.

Error Description: You get this warning during the DR failback checks if the Linux Failover EC2 Instance does not have sufficient storage space of 2 GB on the mentioned volume.

Error Solution: For a successful DR failback, make sure that more than 2 GB free space is available on the volume mentioned in the error message.

Error Message: rsync error occurred

Error Description: This error occurs when the rsync command on the source virtual machine is broken.

Error Solution: To resolve this error, ensure that the rsync command on the source virtual machine works correctly.

Error Message: Some dependencies are missing on source machine

Error Description: This error occurs when the perl and ifconfig commands, which are needed for the installation of VMware tools, are not installed on the source EC2 instance.

Error Solution: To resolve this error, install the perl and ifconfig commands on the source EC2 instance.

Error Message: SSH Connection error occurred between source and target machine

Error Description: This issue occurs during the attribute collection phase. This issue occurs due to a connectivity issue between the target virtual machine and the source EC2 instance.

Error Solution: To resolve this error, perform the following actions:

Error Message: /etc/fstab configuration error occurred

Error Description: This issue occurs when the root mount is included in the exclude mount or the mount point has an unsupported LVM layout. LVM supports only the linear logical volumes.

Error Solution: To resolve this error, refer to the Support matrix. Contact Support.

Error Message: Password of source machine is either expired or must be changed

Error Description: This error occurs when the password of the source EC2 instance expires or changes.

Error Solution: To resolve this error, log into the source EC2 instance with the valid credentials. Contact Support.

Error Message: sudo configuration on source machine caused error

Error Description: This issue occurs when sudo is configured with the requiretty setting and the NOPASSWD is not set for the user in the sudoers file.

Error Solution: To resolve this error, see How to set up sudo privileges.

Error Message: Destination port is not reachable. Firewall blocks or port is different.

Error Description: This error can occur during a DR Failback if the failover EC2 instance is reachable from the selected destination network i.e. vCenter/ESXi Network (defined in the Destination VMware Settings tab in the Failback Settings ) but the Failover EC2 Instance does not have required ports open either in the security group or in the firewall.
This error can occur during DR Failback Checks if the failover EC2 instance is reachable from the network associated with the VMware backup proxy in the selected Backup Proxy pool.

Error Solution:To resolve this error:

Error Message: SSH Connection error occurred between source and target machine

Error Description: This error can occur during DR Failback Checks or a DR Failback job if the SSH connection is lost between the VMware backup proxy and the failover EC2 instance due to a drop in the network connection or unavailability of the EC2 instance.

Error Solution: To resolve this error:

Error Message: Invalid mount point excluded for failback

Error Description: This error occurs if the mount point to exclude is either not present in the source EC2 instance or is from the list of restricted mount points. The restricted mount points for Linux are /, /usr, /var , and /boot, respectively.

Error Solution: To resolve this error, enter valid mount points to exclude and retrigger the failback operation.

Error Message: Unsupported source filesystem or volume or partition

Error Description: This error can occur during DR Failback Checks or DR Failback job if the Failover EC2 instance has an unsupported file system, volume, or a partition. The DR failback job excludes all the unsupported file systems, volumes, and partitions by default during the data transfer from the failover EC2 instance to the failback VM.

Error Solution: To resolve this error, review the Support matrix.

Error Message: Unsupported source volume

Error Description: This error occurs if the source EC2 instance has an unsupported volume. Unsupported file systems, volumes, and partitions are excluded from failback.

Error Solution: To resolve this error, review the Support matrix. Contact Support.

Error Message: Current instance type is not supported for conversion of the current OS version.

Error Description: This error occurs when the instance type selected in the DR plan is unsupported for converting the virtual machine to an Amazon EC2 instance.

Error Solution: Select the instance type mentioned in the error message or use the Auto Assign instance feature to assign a supported instance type automatically.

Error message:Conversion of 32bit Linux sources to AWS are not supported.

Error Description:You may run into this error when a x86 (32-bit architecture) Linux virtual machine is being failed over. Linux VMs with an x86 (32-bit architecture) are unsupported for DR failovers.

Error Solution:Run DR failovers for x64 (64-bit) Linux VMs only.

Error message:Partition table was not recognized.

Error Description:You may get this warning during DR failback checks or the DR failback job when the partition table of the disk is not recognized or the disk was not partitioned at all. No data is transferred for such disks from the failover EC2 instance to the failback VM.

Error Solution:To resolve this warning, ensure that disk is partitioned in a supported format or exclude the mountpoint associated with the disk in DR Failback settings.

Error Message: The size of the /var/log/lastlog or /var/log/faillog file is more than 100Mb and it will be excluded during Failback data transfer.

Error Description: You may get this warning during DR Failback Checks or a DR Failback job because /var/log/lastlog or /var/log/faillog logs whose size is greater than 100MB are not transferred during the data transfer phase.

Error Resolution: To resolve this error:

Error Message: This OS is not supported for conversion.

Error Description: This error occurs when the operating system on the virtual machine is unsupported for the conversion of the virtual machine to an Amazon EC2 instance.

Error Solution: Only the operating systems listed in the DR support matrix are supported for a virtual machine conversion into an Amazon EC2 instance.

Error Message: Another process is using TCP port 50000, and an alternate transport port was not specified. This migration cannot proceed.

Error Description: TCP Port 50000 is used to perform data transfer during DR failback. This error can occur during the DR failback checks or the DR failback if TCP Port 50000 is not open/available in the Failover EC2 instance.

Error Solution: To resolve this error, ensure that TCP Port 50000 is open in the failover EC2 instance and it is not used by any other process.

Error Message: It appears that Shadow Copy Storage space is limited on volume(s). This may cause migration failure if the rate of changes on the volume would exceed transfer rate. Consider changing Source Shadow Copy storage space.

Error Description: You may get this warning during DR failback checks of a DR failback if the space allocated for Windows shadow copy on the mentioned volume is insufficient.

Error Solution: To resolve this warning:

Error Message: It appears that the Source Machine is a Domain Controller.

Error Description: You may get this warning during DR failover checks or DR failback checks when the source machine is a domain controller.

Error Solution: During a DR failover or DR failback, the network connectivity of the domain controller with the joined VMs may break. Ensure that the failover or the failback of the domain controller does not impact the VMs joined to it.

Error Message: OS System_volume located on the physical disk.

Error Description: This error occurs when some issues are identified in the VM configuration.

Error Solution: Contact Support.

Error Message: Antivirus software detected.

Error Description: You may get this warning during DR failback checks or a DR failback job if antivirus software is installed in the failover EC2 instance. The antivirus software could potentially block the execution of the Druva failback processes.

Error Solution: To resolve this error contact Support.

Error Message: Failed to login due to unknown username or bad password.

Error Description: The DR failback job may fail with this error if the username and password of the failover EC2 instance are incorrect.

Error Solution: Ensure that the username and password for the failover EC2 instance are correct.

Error Message:Access is denied for the specified user, for example, when specified user is not in Administrators group.

Error Description: The DR failback job may fail with this error when:

Error Solution:

Error message: Failed to log in as there are no logon servers available to service the logon request.

Error Description: You can run into this issue while logging into a failover EC2 instance of a domain-joined VM during a failback job due to the following reasons:

Error Solution:

Error Message: The network path was not found while accessing SMB share

Error Description: This error occurs if the SMB/admin share network path of the failover EC2 instance is not found.

Error Solution:

📝 Note

​ We recommend running DR Failback Checks using VMware backup proxy of version 6.0.4 or later before triggering the DR Failback job.

To verify the access to the SMB share, run the \\<ip-of-ec2>\Admin$ command on in the Windows > Run field from any Windows computer.

If the access is denied, perform the following steps on the failover instance:

Error message: You get the following error message:
​Druva Service failed to start while converting VMware VM into AWS EC2 Instance.

Error Description: This error occurs when the Druva service present inside the Failover EC2 instance fails to start while converting the VMware VM into AWS EC2 instance. This can happen due to one of the following reasons:

Error Solution: Make sure all the Druva executables are whitelisted. For more information, see Avoid antivirus interference with Phoenix DRaaS program or process.

Error message:Unsupported OS architecture ‘x86’ detected. Only 'x64' OS architecture is supported.

Error Description:You may run into this error when a 32-bit Windows virtual machine is being failed over.

Error Solution:DR failovers for 32-bit Windows virtual machines are not supported. DR failovers can only be initiated for 64-bit Windows virtual machines.

Error message: Storage filter driver(CtxMcsWbc) detected and it can block phase-2 recovery as it prevents the upgrade from writing changes to disk.

Error Description:You may run into this error if the storage filter driver from Citrix is detected on the virtual machine that is being failed over. CtxMcsWbc storage filter driver is present which can block phase-2 recovery because it prevents the upgrade from writing changes to the disk.

Error Solution:Uninstall the Citrix storage filter driver and retry the DR Failover.

Error message: Mountpoints marked for exclusion are not found on the EC2 instance

Error Description:You get this warning during the DR failback checks if the Failover EC2 Instance does not have the mountpoints requested for exclude in the Failback settings.

Error Solution:Select a mountpoint which exists on the Failover EC2 Instance.

Error message:It appears that source has not enough space on volume. Druva require 2 GB free space on <volume-letter> volume

Error Description:You get this warning during the DR failback checks if the Windows Failover EC2 Instance does not have sufficient storage space of around 2GB on the mentioned volume.

Error Solution:For a successful DR failback, make sure that more than 2GB free space is available on the volume mentioned in the error message.

Error message:Incorrect sudo configuration on the Failover EC2 instance

Error Description:You get this warning during the DR failback checks if the sudo is configured to require a tty.

Error Solution:Perform the following steps to disable the Defaults requiretty setting so that the failback data transfer can proceed without requiring a tty:

Error message:The enhanced data transfer component running on the target has failed

Error Description:You get this error during the DR Failback job if the data transfer from Failover EC2 Instance and Failback VM is stopped abruptly inside the Failover EC2 Instance by an external process.

Error Solution:We recommend that you run the DR Failback checks to know any potential warnings or blockers and fix them before running next DR Failback job. For more information, see DR Failback Checks.

Error message:Failed to login as the trust relationship between this workstation and the primary domain is failed

Error Description:You get this error during the DR Failback job or the DR Failback Checks if the credentials provided to log into the Failover EC2 Instance are domain user credentials and authentication with the Domain Controller failed using the provided credentials.

Error Solution:

Test-ComputerSecureChannel

If the output of the above command is False, then run the following command:

Test-ComputerSecureChannel -Repair

If the output of the command is True, then rejoin the domain. For more information, see "The trust relationship between this workstation and the primary domain failed" error when you log in to Windows 7".

For more information about testing the SecureChannel, seeTest-ComputerSecureChannel.

Error message:Image state could be undeployable

Error Description:This issue occurs when something goes wrong during the installation or update of windows on the original VM on vCenter.

Error Solution:Make sure you install the Windows or update correctly on the original VM. For more information, see the IMAGE_STATE _UNDEPLOYABLE state under the Windows Setup State Information section of Windows Setup States.

Error Message: Generic error

Error Description: Operation has failed with generic error due to configuration or environmental issues.

Error Solution: Contact Support.

Error Message: Failed to execute post-conversion script on failover instance.

Error Description: This error occurs due to syntax errors or invalid statements in the script.

Error Solution: To resolve this error, perform the following steps:

Error Message: Timeout occurred in attribute collection

Error Description: This error occurs in the following scenarios:

Error Solution: To resolve this error, check if free IP addresses are available.

Error Message: Timeout occurred in Phase-1

Error Description: This error occurs if the Phase-1 of conversion from the source EC2 instance into the target virtual machine exceeds the timeout value.

Error Solution: Contact Support.

Error Message: Timeout occurred in Phase-2

Error Description: This error occurs if the Phase-2 of conversion from the source EC2 instance into the target virtual machine exceeds the timeout value.

Error Solution: Contact Support.

Error Message: Checksum of target worker does not match

Error Description: This error occurs if the checksum of downloaded VMDK does not match the checksum precomputed by the Cloud .

Error Solution: To resolve this error, perform the following actions:

Error Message: Failed to connect to source EC2. Please check network connectivity or power state of EC2

Error Description: This error occurs if the target virtual machine cannot connect to the source EC2 instance due to network disconnection or a stopped source EC2 instance.

Error Solution: To resolve this error, perform the following actions:

Error Message: Preflight validation failed with blockers

Error Description: This error occurs if the conversion of the source EC2 instance into the target virtual machine fails because of certain operating system attributes.

Error Solution: To resolve this error, review the Support matrix, pre-requisites, and limitations for failback.

Error Message: Could not write data to VMDK during failback

Error Description: This error occurs if Druva is not able to write data to a VMDK during failback due to network disconnection or VMware environment issues.

Error Solution: To resolve this error, perform the following actions:

Error Message: No enough free disk space is available on datastore

Error Description: This error occurs if there is no enough free space available on the datastore.

Error Solution: To resolve this error, add more space on the datastore by removing some of the existing virtual machines or select a new datastore.

Error Message: Failed to download file from URL

Error Description: This error occurs when the VMware backup proxy cannot download the failback VMDK during a failback.

Error Solution:

To resolve this issue, perform the following tasks:

Error Message: Unable to connect to the VCenter/ESX host

Error Description: This error occurs if a Druva client is unable to connect to the vCenter or ESX host during failback.

Error Solution: To resolve this error, perform the following steps:

Error Message: Network not found for VM

Error Description: This error occurs if the configured network is not found for the target virtual machine during failback.

Error Solution: To resolve this error, perform the following steps:

Error Message: Resource pool not found where vm should be created.

Error Description: This error occurs if the configured resource pool is not found for the target virtual machine during failback.

Error Solution: To resolve this error, perform the following steps:

Error Message: Folder not found where VM should restore

Error Description: This error occurs if the configured folder is not found for the target virtual machine.

Error Solution: To resolve this error, perform the following actions:

Error Message: Invalid disk controller type

Error Description: This error occurs if the disk controller type is not found for adding a VMDK to the target virtual machine.

Error Solution: To resolve the error, perform the following actions:

Error Message: No free disk controller slot found

Error Description: This error occurs if a free disk controller slot is not found for adding a VMDK to the target virtual machine.

Error Solution: Contact Support.

Error Message: Virtual machine not found

Error Description: This error occurs if a virtual machine corresponding to the UUID is not found.

Error Solution: To resolve this error, ensure that the Druva AWS proxy is connected to the Cloud and retry the failback job.

Error Message: Unable to shutdown VM

Error Description: This error occurs if the shutdown operation for a target virtual machine is not completed.

Error Solution: To resolve this error, ensure that the Druva AWS proxy is connected to the Cloud and retry the failback job.

Error Message: Timed out while shutting down VM

Error Description: This error occurs if the shutdown operation for a target virtual machine exceeded the timeout value.

Error Solution: To resolve this error, ensure that the Druva AWS proxy is connected to the Cloud and retry the failback job.

Error Message: Cannot add more than 4 scsi controllers

Error Description: This error occurs if the maximum limit of adding 4 SCSI controllers has reached while adding a VMDK to a target virtual machine.

Error Solution: To resolve this error, limit the number of the SCSI controllers to 4.

Error Message: ESXI version not supported

Error Description: This error occurs if an ESXI version for the target virtual machine is not supported by Failback.

Error Solution: Contact Support.

Error Message: Failed to update vm information on server

Error Description: This error occurs when the backup proxy fails to update the failed back virtual machine's information to the Cloud .

Error Solution: Contact Support.

Error Message: Failed to aquire lock while downloading target worker

Error Description: This error occurs while downloading a target VMDK on the backup proxy.

Error Solution: Contact Support.

Error Message: Failed to acquire lock while waiting for target worker to finish downloading

Error Description: This error occurs if multiple failback jobs try to download the target VMDK on a backup proxy.

Error Solution: Contact Support.

Error Message: Source EC2 Instance-ID does not match with the EC2 Instance-ID corresponding to the provided IP

Error Description: This error occurs when you enter an incorrect IP address of an EC2 instance during failback.

Error Solution: To resolve this error, ensure that you enter a correct IP address of an EC2 instance during failback.

Error Message: Failed to get EC2 credentials

Error Description: This error occurs when the backup proxy fails to retrieve the password of the source EC2 instance the Cloud .

Error Solution: Contact Support.

Error Message: Failed to reset vm attributes

Error Description: This error occurs when the backup proxy fails to reset the virtual machine attributes.

Error Solution: To resolve this error, check the progress logs for more details and resolve the error as follows:

Error Message: One or more tags could not be attached to the VM.

Error Description: Failback for the instance failed because one or more tags could not be attached to the VM.

Error Solution: Remove the tags ( Failover Instances > Failback > Failbacksettings) and perform the failback again and then reattach the tags to the VM through V- Center.

Error Message: Failback preflight execution on the source VM has timed out while calculating the disk size.

Error Description: The disk size calculation failed because you have excluded some disks ( Failover Instances > Failback > Failback settings ) from the source VM before triggering the failback.

By default, the timeout duration is set to 60 minutes

Error Solution: If you can, remove the exclusion rule from Failover Instances > Failback > Failback settings.

If not, please contact Support.

Error Message: Failback preflight execution on the source VM failed while calculating the disk size.

Error Description: The disk size calculation failed because you have excluded some disks ( Failover Instances > Failback > Failback settings ) from the source VM before triggering the failback.

Error Solution: If you can, remove the exclusion rule from Failover Instances > Failback > Failback settings.

If not, please contact Support.

Error Message: One or more instances are missing or are extra during failback execution.

Error Description: There is a mismatch between the number of instances chosen for failback and the instances that are actually failed back.

Error Solution:​​​​​​Please contact Support.

Error Message: Failback failed for all the instances.

Error Description: This is a common message for all the instances in one job that did not failover successfully.

Error Solution: In the job details, review the error messages for each instance and take action accordingly.

Error Message: Failback failed for one or more instances.

Error Description: This is a common message for all the instances in one job that did not failover successfully.

Error Solution: In the job details, review the error messages for each instance and take action accordingly.

Error Message: No IP Assigned to Failback VM

Error Description: The failback VM could not get an IP address in a timely manner.

Error Solution:Select a network where DHCP is configured. Alternatively, if you’ve selected a static IP address, ensure that you enter the IP address/subnet netmask, Default Gateway, and DNS for the failback VM.
​

📝 Note

​ A subnet netmask value 32 is invalid.

Error Message: IP Assigned to failback VM is unreachable from Backup Proxy.

Error Description: The network selected during failback is not reachable from the VMware backup proxy.

Error Solution: Ensure that the network selected in the failback settings is reachable from the VMware backup proxy. Disable any firewall rules that restrict access between the VMware backup proxy and the selected network.

Error Message:Static IP assigned to the failback VM is unavailable.

Error Description:This error occurs when the Static IP assigned to the failback VM is unavailable.

Error Solution:Ensure that the Static IP address is available and not assigned to another VM.

Error Message:Static IP netmask value 32 is invalid.

Error Description:This error occurs when the Static IP subnet netmask value of 32 is assigned to the failback VM.

Error Solution:Make sure to add another value than 32 for the Static IP subnet netmask.

Error Message:VM Network is Isolated

Error Description:This error can occur due to one of the following reasons:

Error Solution:To resolve these issues ensure that the network is connected to any vSwitch that has a physical adapter that is in an up state.

Error Message:ESX host IP not found

Error Description:This error can occur when the VMware backup proxy cannot get the IP address of the ESXi host.

Error Solution:Ensure thatthe ESXi host is reachable by IP addressfrom the VMware backup proxy.

Error Message:Static IP and gateway IP are in different subnet

Error Description:This error can occur when the static IP address and the gateway IP address provided in the failback settings are in different subnets.

Error Solution:Ensure that thestatic IP address and the gateway IP address provided in the failback settings are in the same subnet. Additionally, the provided subnet must be such that it allows the static IP to reach another IP address in the same subnet. A /32 subnet does not allow the static IP to communicate with other IP addresses in the same subnet.
​

Error Message:Datastore is inaccessible

Error Description:This error can occur if you failback a failover instance to a vCenter Datastore that is not accessible.

Error Solution:Ensure that the ESXi host can access the selected vCenter Datastore.

Error Message:Datastore not found

Error Description:This error can occur if you failback a failover instance to a vCenter Datastore that does not exist.

Error Solution:Ensure that the selected vCenter Datastore exists, else select another Datastore.

Error Message: Prerequisite check status of the latest DR restore job is ERROR.

Error Description: You have triggered the restore of virtual machines that have not cleared the prerequisite checks performed during backup of the virtual machines.

Error Solution: Make sure that the prerequisite checks performed during backup are completed successfully.

Error Message: DR Running Failback job's timeout & expired

Error Description: This error occurs if the failback job is stuck on the client side for a long time.

Error Solution: To resolve this error, ensure that the Hybrid Workloads agent is running. Else start the Hybrid Workloads agent.

Error Message: Availability Zone ID information is not available

Error Description: This error occurs during the DR plan validation if the availability zone ID information is not available.

Error Solution: Upgrade DR proxy to version 6.3.1 or later.

Error Message: Instance type mismatch during DR Plan Validation (For Test)

Error Description: This error occurs when the DR proxy is upgraded and the non-nitro instance family is selected for UEFI firmware.

Error Solution: Select the instance type from the nitro instance family.

Error Message: Instance type mismatch during DR Plan Validation (For Production)

Error Description: This error occurs when the DR proxy is upgraded and the non-nitro instance family is selected for UEFI firmware.

Error Solution: Select the instance type from the nitro instance family.

Error Message: Max retries exceeded for lambda invocation

Error Description: This error occurs when the lambda invocation fails.

Error Solution: The lambda invocation may fail due to multiple reasons such as - S3 or EBS endpoint missing and so on. Use the proxy that has vpc with S3 and EBS gateway endpoints. Also make sure you do not exceed the lambda invocation attempts beyond the quota set for each region.

Error Message: DR Agent: Internal Error

Error Description: This is an internal error.

Error Solution: To resolve this error, contact Support.