Backups And Snapshots - ZyXEL Communications NSA-2401 User Manual

Chapter 12 Troubleshooting
A domain user can't access a share.
In addition to the checks listed previously for local users, check that the domain controller is
turned on and connected to the network.
A user can access a share but cannot access individual folders or files within
the share.
Check the Access Control List (ACL) of read/write permissions associated with the share's
specific files and/or folders. Account names added to the list are linked to the files and folders
that they are allowed to access, along with what kinds of actions they are allowed to perform
with those files and folders (delete, move, rename, and so on).

12.5 Backups and Snapshots

I cannot make a backup.
• Check the logs to find the reason why the backup failed.
• You can also look at the Backup screen's Last Run Result display.
• If you're backing up to another NSA, another NSA, or a computer, check that it allows the
NSA to write files to it. For a synchronization backup, the target must be another NSA or
another compatible model.
• Check that enough space is available on the external disk. If there isn't you may need to
purge older backups or delete other files on the backup USB disk or NSA (see
9.2.4 on page
• Check that the NSA is not performing another backup job. Scheduler queues backups
when a different backup is already going on at the time a backup is scheduled.
I cannot take a snapshot
• Check the logs. The NSA generates an alert log when an error occurs during the snapshot
capture process. This log lists why the snapshot failed, for example, low disk space.
You may need to manually delete some previous snapshots to make more space. If you
still cannot take the snapshot you may need to recreate the volume with a larger amount of
space reserved for snapshots.
• You can also check the logs on the NSA to find out the reason why the snapshot failed.
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NSA-2401 User's Guide