We're using Netapp Virtual Storage Console 2.0 to create backups of virtual machines (vSphere 4.1, ESXi 4.1 hosts). Everything is working fine other than for one VM which is a Domain Controller (Windows 2008 R2, VMWare tools is installed).
When the VSC / SMVI backup is taken, we get the error in VMWare "Cannot create a quiesced snapshot because the create snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine"
Interestingly enough, if I create a snapshot in vSphere manually, I do not get an error.
In Windows - I get a few events logged at the time of the snapshot attempt;
Application Log Event ID: 482, Source: ESENT, Type: Error
lsass (480) An attempt to write to the file "\\?\Volume{c85ad070-d2c3-11df-80e1-005056830007}\Windows\NTDS\edb.log" at offset 7145472 (0x00000000006d0800) for 512 (0x00000200) bytes failed after 0 seconds with system error 19 (0x00000013): "The media is write protected. ". The write operation will fail with error -1032 (0xfffffbf8). If this error persists then the file may be damaged and may need to be restored from a previous backup.
Application Log Event ID: 408. Source: ESENT, Type: Error
lsass (480) Unable to write to logfile \\?\Volume{c85ad070-d2c3-11df-80e1-005056830007}\Windows\NTDS\edb.log. Error -1032 (0xfffffbf8).
Application Log Event ID: 8229, Source: VSS, Type: Warning
A VSS writer has rejected an event with error 0x800423f4, The writer experienced a non-transient error. If the backup process is retried,
the error is likely to reoccur.
. Changes that the writer made to the writer components while handling the event will not be available to the requester. Check the event log for related events from the application hosting the VSS writer.
Operation:
PostSnapshot Event
Context:
Execution Context: Writer
Writer Class Id: {b2014c9e-8711-4c5c-a5a9-3cf384484757}
Writer Name: NTDS
Writer Instance ID: {1e9eb060-32e2-4931-8935-477950a5b121}
Command Line: C:\Windows\system32\lsass.exe
Process ID: 480
I would appreciate any insight to this - many thanks
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Mark Lomas
