I just face a event log as below:
Warning message from localhost.localdomain:
The guest OS has reported an error during
quiescing. The error code was: 5 The error
message was: 'VssSyncStart' operation failed:
IDispatch error #8449 (0x80042301)
it caused the Acronis Backup software fail to backup
In Communities information, it seem relate to disk space and i/o speed.
For disk space, we should have enough disk space for OS.
Also i trust it is not heavy duty when backup, i/o should be enough
In knowledge base 1018194, resolution is reboot the virtual machine.
is it reboot the acronis appliance or our production os?
Any method to prevent the same?
Existing our version is EXSi 5.1 built 799733.
What OS/Application is the VM running?
Maybe you could check the VSS of the VM, if VSS is used of course, check: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=103129...
Test if the backup works without quiescing... The KB mentions the disabling of the feature.
If the machine is producing too much IO during the backup, the quiescing can fail.
I am having the exact issue with our Exchange 2010 server VM with Acronis as backup tool. It also leaves the VM locked and powered off after the backup fails.
OS: Windows Server 2008 x64
Any help would be appreciated.
Anyone figure this out yet?
Same issue here using Commvault Simpana 10 to back up various Windows 2008 R2 hosted on FC 8Gbps datastores on an EMC VNX5700. We don't generally have guest IO issues during backups, but I am seeing this occur more frequently on vSphere 5.5 than I did in 5.0.
This is could issue due VSS writers failing, check all VSS writers showing now error ran following command from cmd to see vss writer status if any error showing fix this first. Normally backup fail due to VSS issues.
vssadmin list writers
follow the following KB for more info.