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ROHIT_KUMAR_AGA's avatar
ROHIT_KUMAR_AGA
Level 3
10 years ago

Medias are not automatically moving to scratch volume pool.

Some medias in my 7.1.0.4 Netbackup environment have Data Expiration and Time Assigned filed empty with Robot Type as NONE means these are scratch medias but these are showing in different-diferent volume pools but not in scratch. 

7.1.x and Earlier
Backup and Recovery
NetBackup
Solaris
  • Marianne's avatar
    Marianne
    10 years ago
    Media will only return to Scratch if they came from Scratch. Have a look at Previous Pool field in this output : nbemmcmd -listmedia -mediaid (media-id ) Only if Previous Pool is listed as Scratch will they go there when expired. You will need to move all expired tapes manually to Scratch. From there on they will automatically go to Scratch when all images expire.

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  • Marianne's avatar
    Marianne
    Level 6
    10 years ago
    Media will only return to Scratch if they came from Scratch. Have a look at Previous Pool field in this output : nbemmcmd -listmedia -mediaid (media-id ) Only if Previous Pool is listed as Scratch will they go there when expired. You will need to move all expired tapes manually to Scratch. From there on they will automatically go to Scratch when all images expire.
  • mph999's avatar
    mph999
    Level 6
    10 years ago

    nbemmcmd -listsettings -machinename <master server name> also has a setting:

    RETURN_UNASSIGNED_MEDIA_TO_SCRATCH_POOL="yes"

    It is not likely this is set to 'no' as 'yes' is the default, but none the less, it is another possible reason that media may not be returning to scratch, though the reason given by Marianne is, in my experience at least, the most common.

  • ROHIT_KUMAR_AGA's avatar
    ROHIT_KUMAR_AGA
    Level 3
    10 years ago

    Thanks Marianne for the response....

    The Previous Pool Name field in below output is blank (-) and the media is showing in another pool now (not scratch).
    nbemmcmd -listmedia -mediaid (media-id )

  • Marianne's avatar
    Marianne
    Level 6
    10 years ago
    You will have to manually move these tapes to Scratch. This will be a once-off. From there on expired tapes will be returned to Scratch.
  • Nicolai's avatar
    Nicolai
    Moderator
    10 years ago

    How may mount does the tapes in qustion have ?

    If tapes get frozen upon first mount, they will be assigned to a pool but with no Data Expiration/Time Assigned. If that is the case, simply unfreeze the tapes.

  • Marianne's avatar
    Marianne
    Level 6
    10 years ago

    Good point about Frozen tapes.

    The most common problem I've seen is where Scratch pool was added after tapes were already in use.

    Tapes can only go back to Scratch. 

    Note the RETURN in RETURN_UNASSIGNED_MEDIA_TO_SCRATCH_POOL="yes" setting.....

    If 'Previous Pool' field is blank, then tapes were not originally in Scratch.

    All expired tapes need to be moved to Scratch as a once-off.