During a backup using the SAN transport mode, the following errors are reported:
San transport error: I/O Operation failed.
Error: One of the parameters supplied is invalid.
These errors are caused by a fault in the Linux kernel when handling SCSI reservation conflicts.
The errors are encountered on the following systems:
When you create a virtual machine with RHEL 7 or RHEL 6 as the Guest OS, the SCSI controller type is set to VMware Paravirtual by default. The HotAdd transport mode does not work if either the backup proxy or the backup target uses Paravirtual SCSI controller.
To use HotAdd transport mode, set the SCSI controller type to LSI Logic Parallel or LSI Logic SAS when you create the virtual machine. For more information about configuring this setting, see the relevant VMware documentation.
The file-level backup method does not back up data through a reparse point.
The VMware API does not support this type of backup.
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Install NetVault Backup Client on the Guest OS, and perform a backup using the Plug-in for FileSystem to include the reparse point directory. |
A restore job fails with the following error:
Failed to restore VM disk data.
Failed to open vmdk VDDK error encountered: code 13
Retrieving error message text VDDK error message is ‘You do not have access rights to this file’
Disk data restore failed for ‘[datastore]VirtualMachineName/ VitrualDiskName.vmdk’
The NetVault Backup Client running the Plug‑in for VMware may not have access to the SAN. To verify, try using the NBD transport mode. If restore completes successfully with this mode, it indicates SAN connectivity issues.
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