PowerProtect Data Manager 19.11 Network Attached Storage User Guide

Unable to create a snapshot

On the NAS appliance, verify whether the backup operation would exceed any of the snapshot limits. System-wide and directory snapshot limits vary by appliance. The appliance documentation provides more information.

If necessary, remove any snapshots that are no longer required and then try the backup again. Verify that the NAS appliance management credentials are correct. Check the NAS appliance licensing.

Unable to create a snapshot on Isilon/PowerScale

On the appliance, verify whether the /ifs/.snapshot directory exists. If this directory does not exist, contact Isilon/PowerScale Customer Support.

Confirm that you have shared the required paths for CIFS and NFS protection. Prerequisites provides more information.

Unable to mount an appliance snapshot or share asset

Download the NAS protection workflow logs. Review protection logs provides instructions.

Open snapshotAndSlice.log and copy the mount command from the log. Replace the password placeholder with the appliance or share credential. Use the appliance or file server console to test the mount command.

Use the output from the mount command on the appliance or file server console to troubleshoot. Resolve configuration issues such as invalid credentials or connectivity problems. If there are no configuration issues, contact Customer Support.

Isilon/PowerScale backup times increase

An increasing number of snapshots in /ifs/.snapshot may reduce appliance performance, resulting in increased backup times. Creating snapshots for assets under the same path can also reduce appliance performance. Some task failures may also result in failure to delete a snapshot. Remove unneeded snapshots to restore performance. Manually delete Isilon/PowerScale snapshots provides instructions.

Backup cancellation or failure prevents snapshot deletion on Isilon/PowerScale

If you cancel backups for multiple assets, circumstances may prevent removal of the corresponding snapshots from the appliance. If the backup status is Failed, retrieve and examine the log bundle. Where a system report, job status, or log indicates that the snapshot was not deleted, manually remove the snapshot. Manually delete Isilon/PowerScale snapshots provides instructions. The log bundle for the backup contains the ID for the corresponding snapshot.