Please can you help with my problem.
We are using a 2008 R2 SP1 server to run DPM 2012 (server name is DPMServer). We are backing up a Sharepoint 2010 farm and Exchange 2010 along with other loner SQL and FS boxes. The backups go onto a VNXE box and
there are currently 28 virtual hard disks on there, each is 2 TB
I am currently unable to run ‘windows server backup’ on DPMServer. Once you open up WSB, it takes about 40 minutes to start a backup job, but it then fails. The error says ‘the operation was stopped; detailed error
;access was denied’ .
But I am able to successfully run a system state backup with this command;
wbadmin.exe start systemstatebackup -backuptarget:C:
I also cannot currently get a VSS system state backup using EMC Avamar (I think this uses WSB?). We back up the DPMServer (FS/SQL/VSS ) using EMC Avamar
I am also getting the following Virtual disk service error. Event ID 25
‘A failure was encountered while retrieving the volume properties. Error code: 0x80070002@020A000D’
And also;
The backup operation that started at '2015-06-25T12:43:09.607000000Z' has failed because the Volume Shadow Copy Service operation to create a shadow copy of the volumes being backed up failed with following error
code '2155348129'. Please review the event details for a solution, and then rerun the backup operation once the issue is resolved
Volume Shadow Copy Service error: An invalid XML document was returned from writer {7a639cef-d3e8-42f0-abef-e1d7d727c7d6}.
Operation:
Writer Modifying Modifying Backup Document
Context:
Execution Context: Requestor
Writer Instance ID: {7A639CEF-D3E8-42F0-ABEF-E1D7D727C7D6}
I think the problem is that 2008 R2 doesn’t support the large number of volumes that I have?
I checked online and found a similar issue. They suggested running ‘diskshadow’ and ‘mountvol’
I ran the diskshadow command. From the diskshadow command output, one can see that the ASR writer has a huge number (about 350) of volumes as components of the BMR backup. The following shows just one of these (there
are 350):
+ Component "ASR Writer:\Volumes\Volume{41ff80f6-1bf1-11e4-8491-001999efa6a0}"
- Name: Volume{41ff80f6-1bf1-11e4-8491-001999efa6a0}
- Logical path: Volumes
- Full path: \Volumes\Volume{41ff80f6-1bf1-11e4-8491-001999efa6a0}
- Caption: Select this volume
(\??\Volume{41ff80f6-1bf1-11e4-8491-001999efa6a0}) if it is a critical volume.
Critical volumes are those which ASR must restore.
- Type: VSS_CT_FILEGROUP [2]
- Is selectable: TRUE
- Is top level: TRUE
- Notify on backup complete:
FALSE
- Components:
- Paths affected by this component:
- Volumes affected by this component:
- Component Dependencies:
And from the command ‘mountvol’ output (see file mountvol) ; you can see that there are ~111 mounted points on the DPMServer from volume#227 to volume#338; 109 of them are on the C: volume as
following:
Volume 227 DPM-vol_28c NTFS Simple 11 GB Healthy
C:\Program Files\Microsoft System Center 2012\DPM\DPM\Volumes\DiffArea\File System\vol_28cdafcb-c759-472a-96ce-3b8d238e949e\
Volume 228 DPM-vol_28c NTFS Simple 65 GB Healthy
C:\Program Files\Microsoft System Center 2012\DPM\DPM\Volumes\Replica\File System\vol_28cdafcb-c759-472a-96ce-3b8d238e949e\
…………….
…………….
C:\Program Files\Microsoft System Center 2012\DPM\DPM\Volumes\Replica\File System\vol_0d574152-f2d1-4402-b2dd-5dd1a42f132e\
Volume 335 DPM-vol_03e NTFS Simple 156 GB Healthy
C:\Program Files\Microsoft System Center 2012\DPM\DPM\Volumes\Replica\Microsoft Exchange Replica Writer\vol_03eca8c2-1d80-4d81-b53d-6791438c9690\
Volume 336 D SC2012DPM UDF DVD-ROM 3368 MB Healthy
Volume 337 E DVD-ROM
0 B No Media
Volume 338 C system NTFS Partition 278 GB Healthy System
Based on a Microsoft article - the max number of software shadow copies for each volume is 512. However, by default you can only maintain 64 shadow copies that
are used by the Shadow Copies of Shared Folders feature. To change the limit for the Shadow Copies of Shared Folders feature, use the following registry key:MaxShadowCopies. I tried this and set it to 256 but that didn’t work.
If you have any ideas for a solution then I would be very much obliged
thanks