Forum Discussion

MariusD's avatar
MariusD
Level 6
13 years ago

An existing snapshot is no longer valid and cannot be mounted for subsequent operations(1542)

Hi,

 

after update exchange to 7.5, i receive this error for Exch Incremental Backups: "An existing snapshot is no longer valid and cannot be mounted for subsequent operations(1542)". The error come after a full backup. 

Does anyone know anything acout this error?

 

Thanks,

Marius

Backing Up
Backup and Recovery
NetBackup
Tip-How to
Troubleshooting
  • CRZ's avatar
    CRZ
    13 years ago

    Previous 7.5 cases opened for this status, involving Exchange, almost always appear to involve some kind of permission issue.

    Is NetBackup Client Service running on the Exchange server?

    (If not, can you check permissions of the user starting it?)

    Any VSS errors?  (what does "vssadmin list writers" show?)

    I don't have any actual knowledge but hopefully this will unveil a clue or two to the root cause of your issue.  (Or, spur someone else on Connect to chip in their much more educated guess!)

    Good luck!  I hope this helps.

3 Replies

Sort By
Replies have been turned off for this discussion
  • CRZ's avatar
    CRZ
    Level 6
    13 years ago

    Previous 7.5 cases opened for this status, involving Exchange, almost always appear to involve some kind of permission issue.

    Is NetBackup Client Service running on the Exchange server?

    (If not, can you check permissions of the user starting it?)

    Any VSS errors?  (what does "vssadmin list writers" show?)

    I don't have any actual knowledge but hopefully this will unveil a clue or two to the root cause of your issue.  (Or, spur someone else on Connect to chip in their much more educated guess!)

    Good luck!  I hope this helps.

  • MariusD's avatar
    MariusD
    Level 6
    13 years ago

    Hy Cris,

     

    I  found into the Event Viewer from Exchnage server this error:

    Exchange VSS Writer (instance 60c930ad-e16e-4831-b0cf-9f148ef7dc7b:55) failed with error code 1295 when processing the post-snapshot event. 

    and

     

    Information Store (4332) Shadow copy instance 55 aborted. 
     

    Now I am waiting the respons from exchange administrator.