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Has Microsoft Broken My Acronis Backup & Recovery

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I have ABR10 11345 installed on a Server 2003 machine. Last Tuesday & Wednesday successful backups were obtained (Tues - Full, Wed - Inc) with the VSS option set. On Friday the backup failed with a 'Partition Error'. Today a backup only works if the VSS option is not set.
What happened between Wednesday & Friday - my system was patched with the following MS Hotfixes and Patches.
KB975713
KB975560
KB971468
KB977914
KB978251
KB977165
KB978037
KB978262
KB978706
KB890830 in that order. I haven't yet had the chance to analyse further, but as the machine only handles SOPHOS (2 other server has same issue and don't use SOPHOS) I think the evidence is there.

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Hello Paul Owen,

Thank you very much for your post.

An error message such a "Partition Error" could mean either errors on the hard drive, or the Acronis SnapApi VSS not reading the correct information from the hard drive.

There are two ways to resolve issues with error messages similar to yours. For example, errors such as these -

- Partition Error. Some of the selected partitions have the following error: MFT bitmap is corrupted..

- Partition Error. Some of the selected partitions have the following error: Run list is corrupted..

- Partition Error. Some of the selected partitions have the following error: Invalid file reference..

can be resolved by installing a SnapApi update available in this Knowledge Base article.

The other way would be to disable AcronisVSS and enable Microsoft VSS.

Should this fail to resolve this problem we ask to contact our technical support so that we can try and determine the cause of the issue.

I found a case in our database, where there is an issue with Microsoft VSS on one of your servers. The other machines that had this problem were fixed by using Microsoft VSS.  The case has been escalated to our next level support and we are currently working on this issue, I am very sorry for the inconvenience.

Please let me know if there is anything else I can assist you with.

Thank you.