NetWorker: Scanner does not create recoverable saveset database entries.

Summary: An enhancement in scanner utility's disk performance causes tape savesets scanned to be unrecoverable without administrative intervention.

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Symptoms

  • After running scanner on a tape volume, a saveset will only show the final fragment address in mminfo, for example:
mminfo -ar ssid,mediafile,mediarec,first,last,fragsize,fragflags -q volume=volume_name
ssid        media-file   record    first            last          frag-size   frag-flags
3989758634  26           0         51140091900      51203151695   61 MB       cb
  • Lack of a fragment in mminfo showing first value of 0 (true start of saveset).
  • Error attempting even saveset recovery: Recover failed from NSR server `server': No volumes found for recover.

Cause

This issue is a result of enhancement for disk-family media in NetWorker 19.5 and above.

Resolution

The code fix will be available in upcoming versions of NetWorker 19.6.1.2 or .3 and 19.7.0.1.

Workaround:
  • Add the -F switch as part of scanner command.
NOTE: This will change saveset retention even if the saveset already exists in the media database (-y switch can be used to set retention manually).
  • Use the standalone scanner binary from an earlier version, ideally 19.4.0.6

Affected Products

NetWorker Family
Article Properties
Article Number: 000201516
Article Type: Solution
Last Modified: 22 Feb 2023
Version:  2
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