- Knowledge Base Listing Page
- Veeam Hyper-V backups and Windows Server 2012 R2 Update KB 2919355
Veeam Hyper-V backups and Windows Server 2012 R2 Update KB 2919355
| KB ID: | 1863 |
| Product: | Veeam Backup & Replication |
| Version: | 7.0.0.839 |
| Published: | 2014-04-10 |
| Last Modified: | 2020-08-13 |
Get weekly article updates
By subscribing, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.
Cheers for trusting us with the spot in your mailbox!
Now you’re less likely to miss what’s been brewing in our knowledge base with this weekly digest
Challenge
Installing the KB2919355 update (April 2014 rollup) on Hyper-V 2012R2 introduces two separate issues:
First issue impacts backup of VMs with Windows OS versions supporting Auto Recovery functionality (Windows 2008R2 and later only) from updated Hyper-V 2012 R2 hosts. Backup of such VMs fails with the following error message:
Processing VMNAME Error: Client error: The system cannot find the file specified.
Failed to open file [\\?\Volume … AutoRecovery.avhdx] in read only mode.
Second issue impacts the entire VM restore of VMs with Windows OS version not supporting Auto Recovery functionality (Windows 2008 and earlier only), if the backup was done from updated Hyper-V 2012 R2 host. Granular recovery options work fine, but the entire VM restore fails with the following error if the backup was done from the updated Hyper-V 2012R2 host:
Writer 'Microsoft Hyper-V VSS Writer' is failed at 'VSS_WS_FAILED_AT_POST_RESTORE'
First issue impacts backup of VMs with Windows OS versions supporting Auto Recovery functionality (Windows 2008R2 and later only) from updated Hyper-V 2012 R2 hosts. Backup of such VMs fails with the following error message:
Processing VMNAME Error: Client error: The system cannot find the file specified.
Failed to open file [\\?\Volume … AutoRecovery.avhdx] in read only mode.
Second issue impacts the entire VM restore of VMs with Windows OS version not supporting Auto Recovery functionality (Windows 2008 and earlier only), if the backup was done from updated Hyper-V 2012 R2 host. Granular recovery options work fine, but the entire VM restore fails with the following error if the backup was done from the updated Hyper-V 2012R2 host:
Writer 'Microsoft Hyper-V VSS Writer' is failed at 'VSS_WS_FAILED_AT_POST_RESTORE'
Cause
Issue 1: After installing the update, Hyper-V starts to return AutoRecovery.avhd(x) path without trailing backslash that is expected by our code.
Issue 2: Under the hood changes of snapshot file naming for guest OSes not supporting Auto Recovery functionality.
Issue 2: Under the hood changes of snapshot file naming for guest OSes not supporting Auto Recovery functionality.
Solution
This issue is corrected in version 7.0.0.871. Please apply Patch 4 to your Veeam Backup & Replication v7 installation to resolve this issue. www.veeam.com/kb1891
Click here to send feedback regarding this KB, or suggest content for a new KB.
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.
Spelling error in text
Thank you!
Your feedback has been received and will be reviewed.
Oops! Something went wrong.
Please try again later.
KB Feedback/Suggestion
This form is only for KB Feedback/Suggestions, if you need help with the software open a support case
Verify your email to continue your product download
We've sent a verification code to:
An email with a verification code was just sent to
Didn't receive the code? Click to resend in sec
Didn't receive the code? Click to resend
Start using Veeam:
Download the product
&
Activate the license key
Thank you!
Your feedback has been received and will be reviewed.