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Symantec backupexec slow to backup exchange 2007 VM

Posted on 2011-10-26
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Last Modified: 2012-05-12
Hi

We have a windows 2008 virtual server (VMware) with exchange 2007, datastore is stored on a seperate disk mounted as a raw LUN.

We are using backupexec 2010 on a remote server (windows 2003 ) to backup the server using the backupexec remote agent.

When backing up the server (just a few Gig worth of data) we only get approx 200MB/min

Compared to other Virtual machines and physical servers this is exteramly slow.  

The problem occurs when backing up to tape and Disk.

Any suggestions?
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Question by:pancho15
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Expert Comment

by:joelsplace
ID: 37031487
Have you tried a speed test to see if the problem is network related or related to the backup?
A Symantec tech recommended running contig on any large files on the server.  (such as the Exchange DB)
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Expert Comment

by:ianmellor
ID: 37031492
Hi,

Are you using GRT (Granular Restore Technology) in your Exchange backup? When you sue this it take a while to backup Exchange it has to back ever single item in the mail. Also are you running CCR cluster in Exchange 2007?

Cheers,
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LVL 125
ID: 37031600
Backups using an Agent in the VM will be very slow.

Change to a Backup product which can backup the VM at the disk, block based level. e.g. Veeam Backup and Replication.
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Author Comment

by:pancho15
ID: 37034536
Other vm's using backupexec agent backup fine 1500 MB / min , using VMWare agent backup runs at 3200 . For testing we are only backing up a folder on the Exchange server not the db. We have also tried backing up the db but same speed issue.
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Expert Comment

by:ianmellor
ID: 37034589
Hi,

Run the backup again and un-tick GRT and report the speed.

Cheers,
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LVL 125
ID: 37034626
Exchange server is not running on a Snapshot?
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Author Comment

by:pancho15
ID: 37035606
Same speed , we are testing without backing up exchange . We are only backing up a 5 gig folder . No matter what we backup , the speed is slow .
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Author Comment

by:pancho15
ID: 37035750
Hanccocka , no snapshot
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LVL 5

Expert Comment

by:ianmellor
ID: 37036405
Hi,

Is the Windows 2008 server that Exchange is on full patched? Can you create and attached a virtual disk to the exchange server and backup from there? What service pack is Exchange on?

Cheers,
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Expert Comment

by:ianmellor
ID: 37036408
What version of Backup Exec are you running?
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Author Comment

by:pancho15
ID: 37036609
Exchange 2007 fully patched - including windows 2008 fully patched. Backupexec 2010 R2 patched.
Dont understand why you want me to create another virtual disk?

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Author Comment

by:pancho15
ID: 37036722
I have also tried running a backup job on the troublesome server by using the Vmware agent option and only using the NBD transport since I know the SAN transport works well.

NBD also worked fine or as expected. 1300 MB/min . So it's not a network problem .

I'm out of ideas?
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LVL 5

Expert Comment

by:ianmellor
ID: 37036773
Hi,

Are you running your RDM in Virtual Compatibility mode? Backup Exec does not backup RDM in Physical Compatibly mode. The reason I asked about another disk is to see if everything is okay with the storage. Are the RDM's a LUN from a RAID group that other virtual machines are using or are they on their own RAID group?

Cheers,
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Author Comment

by:pancho15
ID: 37036791
The Exchange server is configured in the following way. C drive is a standard virutal Disk and the second disk is a Mapped Raw LUN on our Equallogic SAN

The mapped LUN is configured in Physical compatability mode. But I'm only attempting to backup a file / foldes from the C drive.
 
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LVL 5

Expert Comment

by:ianmellor
ID: 37038811
Hi,

There are may factors that can be responsible for backup speed, file size, network, disks, memory. Below are some tech notes from Symantec about performance.

http://www.symantec.com/business/support/index?page=content&id=TECH11562

http://www.symantec.com/business/support/index?page=content&id=TECH8326

http://www.symantec.com/business/support/index?page=content&id=TECH49521

Hope this helps,
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Author Comment

by:pancho15
ID: 37041588
Tried these , its not a network problem as nbd transport over VMWare agent works fine , as does other vms using network bqckup.
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LVL 8

Expert Comment

by:maytrix
ID: 37045422
What's the nic speed showing on the Exchange VM?  Perhaps its got the wrong NIC and running at 100 instead of 1000?
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Author Comment

by:pancho15
ID: 37048081
Nic in vm is set at 1000 , file copy over the network runs as expected.  The backup jobs starts at 1500 then within a few seconds gradually gets slower and slower, within a minute its down to 200 . Symantec is looking into the issue, but its now been a week and they haven't done anything other than review job logs.
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Author Comment

by:pancho15
ID: 37061661
With more testing we have found that copying a 1 GIG file to the same drive (system drive) it takes over 5 minutes. after the first copy it then runs okay.

Any one?
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LVL 5

Expert Comment

by:ianmellor
ID: 37061705
Hi,

Do you have any anti virus running on the system drive? Try a copy of a new file with AV turned off.

Cheers,
0
 

Author Comment

by:pancho15
ID: 37061815
No av on this server. Have even tried stopping Exchange services . Problem still persists. I think if I can resolve this copy issue the backup problem will correct itself
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Accepted Solution

by:
pancho15 earned 0 total points
ID: 37074627
Vmware has looked into the problem and suggested the problem may be with the array.

When running a backup or a file copy DAVG results exceed 200. Vmware advises this should not be above 20!

Dell is also looking into the problem. Anyone has any suggestions?  We are using a Equallogic PS6010 10G SAS SAN

 ESXtop resuzlts
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LVL 125
ID: 37075381
I've just noticed, I seem to have deja vu!
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Author Comment

by:pancho15
ID: 37075428
Yes ... Lol ... They kind of are two different problems , I'm hopying if one gets resolved so will the other.  Is there a way to merge questions ?
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Author Closing Comment

by:pancho15
ID: 37589572
Issue was with the Underlying disk (Dell had configured the switches incorrectly - reconfigured and all is working well)
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