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Go to SolutionTime required for VADP image level restore
Hi All,
I am using 8.0.2.6 on nsr server and 8.0.2.6 on Sotrage node, both are windows 2008 R2 machine. DD 670 is used as backup target, OS on DD is 5.2.1.0-331816.
I want to know if any of you have tried VADP image level restoration, in my case for a image level restoration of a VM of size 82 GB it takes more than 5 hours which is very large considering that we are restoring from DD. Does it take similiar time or is it unusual in my case. The restoration time decreases or increases depending on size in proportion to above citation.
Whereas backup for above machine takes around three hours.
I am pasting the logs during one of the restores..
Requesting 1 recover session(s) from server.
91651:nsrvadp_recover: Successfully established AFTD DFA session for recovering save-set ID '1839487632'.
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\diskBitmap_0
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\diskBitmap_1
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\Disks
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\metaFile_C
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\metaFile_D
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\reference_C
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\reference_D
C:\Program Files\EMC NetWorker\nsr\tmp\1839487632\1\vm_config.xml
Making directory: [VM_OS-N-R] Server1
Recovering to original VC system.
Recovering to original ESX host system.
libCURL SSL support is ENABLED
NetWorker install path: C:\Program Files\EMC NetWorker\nsr\.
Temporary Directory for VADP created.
Temporary vmMntLoc Directory for VADP created.
Initializing VimServer...
VimServer is initialized
Volumes needed (all on-line):
cifs_share.001 at rd=server2:cifs_share
Total estimated disk space needed for recover is 391 MB.
Requesting 8 file(s), this may take a while...
Received 8 file(s) from NSR server `Server3'
Recover completion time: 6/21/2013 4:05:23 AM
Trying to find the datacenter: DC ...
Trying to find the ESX host system: server4 ...
Trying to find the resource pool: ...
Remapping Virtual Machine config data store from VM_OS-N-R to VM_OS-N-R.
Remapping Virtual Disk 'Hard disk 1' data store from VM_OS-N-R to VM_OS-N-R.
Remapping Virtual Disk 'Hard disk 2' data store from VM_DA-N-R to VM_DA-N-R.
Upload the VM to vCenter Server.
New VM Name: server1
Datacenter: DC
Resource Pool: Resources
ESX Host: server3
Transport Mode:nbd
Registering VM ...
Registering VM for 'server1' ...
Task is -1% complete
Task is -1% complete
Reconfiguring VM for 'vm-2292' ...
Task is -1% complete
Task is 50% complete
Task is 100% complete
Task is -1% complete
Reconfiguring VM for 'vm-2292' ...
Task is -1% complete
Task is 100% complete
Task is -1% complete
Deleting snapshot for 'snapshot-2293' ...
Task is -1% complete
Task is -1% complete
Requesting 1 recover session(s) from server.
Total estimated disk space needed for recover is 87 GB.
openVddkHandle() successful for disk number 2000 Using 'nbd' as the transport mode for VirtualDisk_2000.
Disk handler for disk 2000 opened successfully
C disk handle open success
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openVddkHandle() successful for disk number 2001 Using 'nbd' as the transport mode for VirtualDisk_2001.
Disk handler for disk 2001 opened successfully
D disk handle open success
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Recovering metadata for the disk 0, Please wait...
openVddkHandle() successful for disk number 2000 Using 'nbd' as the transport mode for VirtualDisk_2000.
Disk handler for disk 0 opened successfully
.....
Recovering metadata for the disk 1, Please wait...
openVddkHandle() successful for disk number 2001 Using 'nbd' as the transport mode for VirtualDisk_2001.
Disk handler for disk 1 opened successfully
.Received 111705 matching file(s) from NSR server `server2'
Recover completion time: 6/21/2013 5:04:43 AM
Temporary directory 'C:\Program Files\EMC NetWorker\nsr\tmp\1839487632' for VADP deleted.
Restore of virtual machine finished successfully
Completion time: 6/21/2013 5:04:45 AM
Total time taken: 0 hr(s) 59 min(s) 44 sec(s)
Regards
tech88kur
As per the above log, you are using nbd mode of transport. Which uses Ethernet network to restore data, so network congestion might cause this.
Also check if the file level recovery is enabled. If enabled, whole image level restore will take more time.
Regards,
Prajith
Dear Prajith,
I am taking 2 points for my action here:
1) I will create two different clients, one will have FLR enabled for file level backup and another one will have FLR disabled, the second one will be used only for image level backup
2) I will try with SAN mode recovery.
It will take some time. I will update the results here.
Regards
tech88kur
Dear Prajith,
Forgot to mention that the VADP proxy and storage node are both VMs, and as such SAN mode is ruled out. I just tested it and found errors.
Found https://emc--c.na5.visual.force.com/apex/KB_BreakFix_1?id=kA1700000000Ven which mentions the issue for 7.6.2, I think the same applies for 8.0.2.6
That means my only option is segregating FLR based and non-FLR based backups.
Regards
tech88kur
nmc2
268 Posts
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Posted March 6th, 2014 02:00
As per my knowledge disabling FLR is the only option.
If you want to use FLR, create 2 deferent client instances and run backup separately. When recovering use saveset without FLR to restore. Also the changes will be applicable for future backups only.
Regards,
Prajith