VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

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VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby mr2nut123 » Wed Apr 09, 2014 9:51 am

Case ID: 00534162

Has anyone else had this with Veeam after shrinking a VHDx? Is there something else that needs to be done to prevent this error?
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Re: VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby foggy » Wed Apr 09, 2014 9:50 pm

This error has not been reported here on forums previously, but according to QC there was a similar issue in some earlier versions that was addressed in version 6.5. What Veeam B&R version are you using? If it is v6.5 or newer, then please continue working with support regarding this issue. Thanks.
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Re: VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby mr2nut123 » Fri Apr 11, 2014 8:43 am

foggy wrote:This error has not been reported here on forums previously, but according to QC there was a similar issue in some earlier versions that was addressed in version 6.5. What Veeam B&R version are you using? If it is v6.5 or newer, then please continue working with support regarding this issue. Thanks.


It's the latest version with #3 installed. It was only after I shrunk a vhdx. They have provided me with a custom diag tool which I will run today as I was out of the office yesterday.
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Re: VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby KennethLarsen » Fri Jun 05, 2015 7:04 am 1 person likes this post

Just had the same error, on veeam 8. I extended the VHDX with just 1 gb, and ran an active full, and that worked ! :)
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Re: VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby mr2nut123 » Fri Jun 05, 2015 8:08 am 1 person likes this post

Good shout. I basically just had to reboot the Server for it to detect the changes. It must be the Software expecting a certain file size in the backup.
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Re: VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby PeterWR » Fri Jun 12, 2015 2:03 am 1 person likes this post

Just wanted to confirm this worked for me too!

Simply expanding a drive by 1GB - after it has been previously shrunk - allows the backup to proceed normally. I did not need to restart either host or VM for this truck to work.

Looks like Veeam does not understand a shrink, but can understand an expansion.
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Re: VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby FrankD » Sun Jul 12, 2015 7:43 am 1 person likes this post

Same problem, Version 8.0.0.2030

Disabled HyperV CBT - Not working :(
Run Active full - Not Working :(

Extended VHDX 1GB - Backup is Working Again. :D
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Re: VHDx:CVhdxLog.GetActiveSequence: VHDx disk was truncated

Veeam Logoby niconl » Wed Feb 15, 2017 3:23 pm

I just had this same error with veeam 9.5. Extending the VHDX with 1GB is still doing the trick.
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