error -641 (chunk checksum didn't match)

[atlantisnet 0]

All of a sudden I am getting an error which says "Trouble matching Local Disk (C:) to Backup Set B, error -641 (chunk checksum didn't match)".

 

I am running:

Retrospect Multi Server Version 7.6.111

Driver Update and Hot Fix, version 7.6.1.101

on a Windows 2000 SP4 Server.

 

I have tried restarting the server and performed a recatalog. The problem still persists.

 

I tried searching these forums and the knowledgebase but was unable to find any information about this error.

 

I am currently unable to perform any backup. Does anyone know how to resolve this error?

 

[Mayoff 124]

Are you able to backup to other backup sets? What exact steps did you take to "recatalog"?

[atlantisnet 0]

Yes, I am able to backup to a different backup set.

 

First I tried "Tools", "Repair Catalog", "Repair File Backup Set" but received an error saying "Can't use a valid non-file backup set to recreate." so instead I ran "Tools", "Repair Catalog", "Update Existing Catalog File" which completed without error.

[Mayoff 124]

None of those are the right option. You must do a Recreate from Disk.

[atlantisnet 0]

That worked! Thank you.

 

It took 7 hours and 47 minutes to recatalog the backup set but now I am able to backup without error. I hope this doesn't happen too often.