Forum Discussion

chclman2000's avatar
chclman2000
Level 0
3 years ago

No appendable media could be mounted. Switching to overwrite operation on scratch media.

Backup Exex 2010 R3, 13.0 rev.5204(64bit), SP2, Hotfix 180429

Backup job setting: Append to media, overwrite if no appendable media is available

Media Sets setting: Infinite-allow Append

The media data is used 30% only, but the media was overwrite
No any setting change before, but the overwrite problem occurred this time, message as below:

"No appendable media could be mounted. Switching to overwrite operation on scratch media."

2010 all revisions
Windows Server 2012 R2
  • Gurvinder's avatar
    Gurvinder
    Moderator
    3 years ago

    The 2010 version is pretty old but the way we write ( append and overwrite) to tape media has remained the same. Please check this technote veritas.com/support/en_US/article.100017917 and see if it helps.
    By any chance does the tape show end marker unreadable when the job switches to overwritable media?

  • RogRubin's avatar
    RogRubin
    Moderator
    3 years ago

    If your job needs more then one media, then we need an overwriteable tape: see the following paragraph from the TN Gurvinder shared:

    • If the job is able to find appendable media, the job will mount the media and proceed to write the job to that media.
      If the backup job needs more media to complete the backup operation, any further requests for media to complete the operation will be for media that is able to be overwritten as Backup Exec cannot append to more than one media on the same job.