Problem description
NAS backup fails with Authorization Error for Dell Isilon NAS Device as the NAS proxy will call Isilon metadata API on the directories/files to identify which files are stub files.
We do not backup the stub files by default because there are symlink or soft link files which don't contain the data, it only refers to the data.
Stub files will not get backup and agent will skip these files for default behaviour.
By default the value of parameter STUB_BACKUP_ENABLED is false in Phoenix.cfg of NAS proxy.
Cause
Dell Isilon NAS Device doesn't have the CloudPool License
Verification
Verify value of parameter(STUB_BACKUP_ENABLED) in Phoenix.cfg of NAS proxy
Resolution
Users can make the changes in Phoenix Configuration(Phoenix.cfg) file of NAS Proxy to skip the STUB file stat command to avoid identifying the STUB files.
Follow below steps:
Login to NAS proxy
Edit Phoenix.cfg file
Change the value of below parameter to True from False
STUB_BACKUP_ENABLED = True.