Hello,
I'm trying to setup backup on newly setup 2012 R2 server. I have Linux and Windows guests. Windows guest back up fine, sometime I do get errors though. With Linux guests (CentOS7, latest build) - it doesn't work I get error:
0x800423f4, The writer experienced a non-transient error. If the backup process is retried, the error is likely to reoccur.Operation: PrepareForSnapshot Event Context: Execution Context: Writer Writer Class Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de} Writer Name: Microsoft Hyper-V VSS Writer Writer Instance ID: {ad8490d5-51b1-4fa5-8142-8aa3c2fd3bdd} Command Line: C:\Windows\system32\vmms.exe Process ID: 1408
I read somewhere it might be because of integration tool version mismatch? Yes, I do get this warning in logs:
A storage device in 'ASTERISK' loaded but has a different version from the server. Server version 6.0 Client version 5.1 (Virtual machine ID 660823D6-72FF-4110-81E9-BFD572C54490). The device will work, but this is an unsupported configuration. This means that technical support will not be provided until this problem is resolved. To fix this problem, upgrade the integration services. To upgrade, connect to the virtual machine and select Insert Integration Services Setup Disk from the Action menu.But, after research on this error - I found that it's "OK" and should be fine.
https://support.microsoft.com/en-us/kb/2956569/en-us?wa=wsignin1.0
Seems like a catch 22. How do I backup Linux Guests?