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7.0.1 (+EEB ET2105102) / vSphere 4.1 / Pb backup nbd Win2k8R2 with "disk.enableUUID"

Created: 30 Nov 2010 | 5 comments
Stephane COLIN's picture

Hi,

I have a problem to backup Windows 2008R2 VM on vSphere 4.1 with NBU 7.0.1 (with EEB ET2105102) (NBD and HOTADD transport).

 

My environement (Its a POC) :

   - (Windows 2008 R2 x64) 1 Master NBU 7.0.1 (  EEB ET2105102) with MSDP (SAN HP-XP 200 Go) and 1 Gbps LAN

   - (Windows 2008 R2 x64) 1 Master NBU 7.01 (  EEB ET2105102) with MSDP (SAN HP-XP 200 Go) and 1 Gbps LAN

   - 1 ESX vSphere 4.1 with 10 VMs (Win 2k8R2 x64   Win 2K3 R2 x64)   1 vCenter

 

 

Now with vSphere 4.1, and by default with 2008 VM, the parameter "disk.enableUUID" is prensent and enable.

 

I don't have exact definition of this parameter, but, it permit the new feature "application level quiescing".

http://www.vmware.com/support/developer/vddk/vadp_vsphere_backup12.pdf

Windows 2008 application level quiescing is performed using a hardware snapshot provider. After quiescing the virtual machine, the hardware snapshot provider creates two redo logs per disk: one for the live virtual machine writes and another for the VSS and writers in the guest to modify the disks after the snapshot operation as part of the quiescing operations. The snapshot configuration information reports this second redo log as part of the snapshot. This redo log represented the quiesced state of all the applications in the guest. This redo log must be opened for backup with VDDK 1.2. The older VDDK 1.1 software cannot open the second redo log for backup.

 

Alternately, this feature may be disabled, set the "disk.EnableUUID" parameter for all VM Windows 2008/2008R2 settings to False :
   - Power off VM
   - Settings --> Options --> General --> Configuration Parameters.
   - Set disk.EnableUUID to False.
   - Save the settings.
   - Power on the virtual machine.

 

I didn't test this parameter with SAN transport, have you testing this ?

If you have a solution or another explanation !!

 

Stéphane COLIN

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Riaan.Badenhorst's picture

Hi,

 

What exactly is the problem you're facing, can you post the logs, bpfis in particular.

 

Does a backup of the other VM's work (Windows 2003)

Regards,

Riaan Badenhorst

You need an OpenVision to see the truth about Backups. Restores are a plus. But that's just Semantics ;)

ITs easy :)

Stephane COLIN's picture

Hello,

 

The snapshot process is OK :

 30/11/2010 13:12:13 - requesting resource STU-DP-MSDP-S
30/11/2010 13:12:13 - requesting resource eme15nt.NBU_CLIENT.MAXJOBS.EME03NT
30/11/2010 13:12:13 - requesting resource eme15nt.NBU_POLICY.MAXJOBS.PL-VMWARE-15
30/11/2010 13:12:13 - granted resource eme15nt.NBU_CLIENT.MAXJOBS.EME03NT
30/11/2010 13:12:13 - granted resource eme15nt.NBU_POLICY.MAXJOBS.PL-VMWARE-15
30/11/2010 13:12:13 - granted resource MediaID=@aaaab;DiskVolume=PureDiskVolume;DiskPool=DP-MSDP-S;Path=PureDiskVolume;StorageServer=eme15nt;MediaServer=eme15nt
30/11/2010 13:12:13 - granted resource STU-DP-MSDP-S
30/11/2010 13:12:13 - estimated 0 Kbytes needed
30/11/2010 13:12:13 - begin Parent Job
30/11/2010 13:12:13 - begin Flash Backup Windows, Start Notify Script
30/11/2010 13:12:13 - started process RUNCMD (3708)
30/11/2010 13:12:13 - ended process 0 (3708)
Status 0
30/11/2010 13:12:13 - end Flash Backup Windows, Start Notify Script; elapsed time: 00:00:00
30/11/2010 13:12:13 - begin Flash Backup Windows, Step By Condition
Status 0
30/11/2010 13:12:13 - end Flash Backup Windows, Step By Condition; elapsed time: 00:00:00
30/11/2010 13:12:13 - begin Flash Backup Windows, Read File List
Status 0
30/11/2010 13:12:13 - end Flash Backup Windows, Read File List; elapsed time: 00:00:00
30/11/2010 13:12:13 - begin Flash Backup Windows, Create Snapshot
30/11/2010 13:12:13 - started process bpbrm (6920)
30/11/2010 13:12:13 - started
30/11/2010 13:12:14 - begin Create Snapshot
30/11/2010 13:12:14 - snapshot backup of client EME03NT using method VMware
30/11/2010 13:13:03 - end Create Snapshot; elapsed time: 00:00:49
30/11/2010 13:13:03 - end writing
Status 0
30/11/2010 13:13:03 - end Flash Backup Windows, Create Snapshot; elapsed time: 00:00:50
30/11/2010 13:13:03 - begin Flash Backup Windows, Policy Execution Manager Preprocessed
Status 6
30/11/2010 13:14:11 - end Flash Backup Windows, Policy Execution Manager Preprocessed; elapsed time: 00:01:08
30/11/2010 13:14:11 - begin Flash Backup Windows, Stop On Error
Status 0
30/11/2010 13:14:11 - end Flash Backup Windows, Stop On Error; elapsed time: 00:00:00
30/11/2010 13:14:11 - begin Flash Backup Windows, Delete Snapshot On Exit
30/11/2010 13:14:11 - begin Flash Backup Windows, Delete Snapshot On Exit
30/11/2010 13:14:11 - started process bpbrm (3184)
30/11/2010 13:14:20 - end writing
Status 0
30/11/2010 13:14:20 - end Flash Backup Windows, Delete Snapshot On Exit; elapsed time: 00:00:09
30/11/2010 13:14:20 - begin Flash Backup Windows, End Notify Script
30/11/2010 13:14:20 - started process RUNCMD (372)
30/11/2010 13:14:20 - ended process 0 (372)
Status 0
30/11/2010 13:14:20 - end Flash Backup Windows, End Notify Script; elapsed time: 00:00:00
Status 6
30/11/2010 13:14:20 - end Flash Backup Windows, Delete Snapshot On Exit; elapsed time: 00:00:09
the backup failed to back up the requested files(6) 

 

 

The backup failed with this error :

 30/11/2010 13:13:03 - estimated 0 Kbytes needed
30/11/2010 13:13:03 - started process bpbrm (3684)
30/11/2010 13:13:03 - connecting
30/11/2010 13:13:03 - connected; connect time: 00:00:00
30/11/2010 13:13:07 - begin writing
30/11/2010 13:14:05 - Error bpbrm(pid=3684) from client EME03NT: ERR - Error opening the snapshot disks using given transport mode: Status 23.
30/11/2010 13:14:11 - Info eme15nt(pid=6964) StorageServer=PureDisk:eme15nt; Report=PDDO Stats for (eme15nt): scanned: 1 KB, stream rate: 0.00 MB/sec, CR sent: 0 KB, dedup: 100.0%, cache hits: 0 (0.0%)
30/11/2010 13:14:11 - Error bpbrm(pid=3684) could not send server status message      
30/11/2010 13:14:11 - end writing; write time: 00:01:04
the backup failed to back up the requested files(6) 

 

This problem seems to be experienced in NBD mode, and the alternative is to disable "disk.enableUUID" parameters.

 

 

Stéphane COLIN

AttachmentSize
log_bpfis.txt 140.92 KB

Stephane COLIN

...... NBU Guy ..... 

Riaan.Badenhorst's picture

Hi,

 

I've seen that error but its supposedly common if you use hotadd. Where is your Vcenter located, guest or physical?

 

I'd give the SAN method a shot if you can.

Regards,

Riaan Badenhorst

You need an OpenVision to see the truth about Backups. Restores are a plus. But that's just Semantics ;)

ITs easy :)

Stephane COLIN's picture

Hi,

 

My vCenter is install in VM to another ESX server.

I tested this :

   - NBD /

         * NBU Media installed on Physical machine : Status 23 and 6

         * NBU Media installed on Virtual machine : Status 23 and 6

   - HOTADD / NBU Media installed on Virtual machine : Status 23 and 6

 

On this environement, it's not possible to test SAN transport mode.

 

I think that the principal question is :
   - Wich impact to disabe "disk.enableUUID" on Windows 2008/2008R2 VMs ?
      * just "application quiescing" ?
      * another function ?

 

 

Stéphane COLIN         

Stephane COLIN

...... NBU Guy .....