When adding or editing a NAS device, the system performs a series of validations to ensure successful connectivity and compatibility. These validations are displayed in the Device Validation window.

For more information, see Add a NAS device and Manage your NAS device.

The validations fall into two categories:

Basic Validations (applies to all NAS devices)
Vendor-Specific Validations (currently supported for Dell EMC Isilon only)

Basic validations

These validations ensure that the NAS device and shares are accessible and properly mounted.

Validation	Description
Share mount successful	Validates if the SMB share mount is successful (only applicable to SMB shares).
Network Connection	Checks the network connectivity between the NAS proxy and the NAS device.

Isilon-specific validations

Druva provides specialized validations for Dell EMC Isilon devices due to their integration with OneFS and SmartLink (HSM) technologies.

Why Isilon validations matter?

Isilon’s CloudPools and HSM (Hierarchical Storage Management) can convert regular files into SmartLink stub files to optimize storage costs. If Druva fails to identify stub files during backup, it treats them as regular files and retrieves the full data from Isilon's secondary tier, potentially increasing storage costs.

To avoid this, Isilon-specific validations ensure stub files are correctly identified and skipped.

Isilon validation criteria

Validation	Description
Minimum NAS proxy version is 5.0.2	The NAS proxy must be on version 5.0.2 or later.
Connection to OneFS via the URL and port succeeded	Validates connectivity to Isilon OneFS API endpoint.
Credentials are valid	Same credentials must be used for both share mounting and OneFS access. 📝 Note OneFS is the API interface used to communicate with Dell EMC Isilon. 📝 Note - Credentials are case-sensitive, including domain names (if applicable). - Session-based authentication is used first; if it fails, basic authentication is used (if enabled). To enable basic authentication, run the following CLI command on Isilon: `isi_gconfig -t web-config auth_basic=true`
OneFS version compatibility	Supported OneFS versions: 8.2.2 and above.
Required privileges for credentials	System Zone User Privileges (Read-Write access) The following are the privileges and descriptions: `ISI_PRIV_LOGIN_PAPI` - Platform API access `ISI_PRIV_ROLE` - Access to role management APIs `ISI_PRIV_NS_TRAVERSE` - Namespace Traversal APIs `ISI_PRIV_NS_IFS_ACCESS` - Namespace Access APIs `ISI_PRIV_NFS` - NFS Share APIs `ISI_PRIV_SMB` - SMB Share APIs `ISI_PRIV_SNAPSHOT` - Recovery point creation and access `ISI_PRIV_JOB_ENGINE` - Job engine access Custom Zone User Privileges (Read-Only Access) Required privileges: SMBsharePrivilege NFSexportsPrivilege PlatformAPIPrivilege RolesPrivilege NamespaceAccess NamespaceTraversePrivilege 📝 Note To create roles and users with required permissions using OneFS UI or CLI, see article.
SnapshotIQ License Requirement	An active SnapshotIQ license is required. Users must be able to access recovery points created by Druva on the Isilon device. 📝 Note Recovery points created by Druva are retained for: 180 days (for full scan backups) 31 days (for other backups) Enable auto-deletion of recovery points using either: SnapshotIQ tab in Isilon UI CLI command: `isi snapshot settings modify --autodelete enable`

Isilon backup validations

Druva validates the following permissions to ensure backup access:

Validation Criteria	Description
Root directory accessible	The root directory (for example, `/ifs`) is accessible to the backup user.
Sub-directories accessible	At least one sub-directory is accessible to the backup user.

📝 Note

If both validations are enabled, Sub-directories accessible is used by default.

Keywords

Isolon, Dell Isolon, Dell Isilon, EMC Isilon, Dell EMC Isilon, Isilon NAS validation, Isilon SmartLink stub files, OneFS backup, validation, Isilon NAS backup requirements, Druva NAS proxy Isilon, Isilon credentials and permissions, Isilon SnapshotIQ settings

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