BE 12.5 restore from disk question

[EvanNY]

I am doing a Exchange 2007 mailbox restore in BE 12.5 from a back up to disk folder with extremly slow restore times at 5mb/sec.

We originally ran a GRT backup of our entire Exchange environment to tape.  We normally do not have drive space to backup to a folder.  So in this case I hooked up a USB drive and made a Backup to disk folder , and made a duplicate backup set of the tape.

The duplicate backup set ran just fine at about 1500mb/sec. 

Unfortuantely now the restore is going at about 5mb/sec.  We are redirecting to a different mailbox on our production server using the agent.

Any ideas why it could be so slow?  Any thoughts how to fix?  I have my tmp folders also on that USB drive.

Thanks for the help!

-Evan

[Nups]

Hi Evan, You can check the parameters mentioned in the tn below: http://www.symantec.com/docs/TECH8326

[Nups]

Hi Evan, You can check the parameters mentioned in the tn below: http://www.symantec.com/docs/TECH8326

[RahulG]

Ideally when you perform Grt restore the throughput is slow compare to other restore , because exchange GRT restore uses MAPI to perform the restore, which is ideally very slow and limitation of MAPI protocol . The advantage you have running restore from disk is that you dont need to stage the mailbox store on the temp location before actually the restore starts.

refer   https://www-secure.symantec.com/connect/articles/understanding-grt-backup-and-restore-functionality-...

[CraigV]

Evan: What sort of speeds do you get if you restore from your primary (ie. not duplicated!) B2D folder?

Thanks!

[vigneshwaran]

Hi,

Where you resore your mailboxes?

[CraigV]

...the OP clearly states they are restoring to another mailbox on the Exchange production server.

[vigneshwaran]

We need to check that server LAN speed and traffic status.  or we redirect to another and check the speed of restore job...

[RahulG]

Any reason for marking down my comment  ?

[RahulG]

Any reason for marking down my comment  ?

[EvanNY]

I did not mark down your comment.  I do see a -1, but i wouldn't even know how to mark down a commment.

But thanks for your response. 

[EvanNY]

We do not have any other B2D folders.  Sorry.

I can say...we had an fiber attached array that was a bit corrupt, so when we saw the 5mb/min restore rate, we disconnected it and hooked up this USB drive.  Still the same rate.

[CraigV]

OK, then it isn't your FC storage array or the USB drive. ANy AV on that server? If so, turn it off and try the restore again.

[EvanNY]

I will look into this. I can say..I do know the LAN speed is fine, as we were copying some files recently, and were doing 10mb/sec.

[EvanNY]

Yesterday afternoon i turned off AV on the backup server...had no effect.  Same 5mb/min, and it holds there..not fluctuation; As almost if a cap is set. 

I assume you are speaking of my backup exec server.  I would rather not turn off AV on my exchange server.

[CraigV]

Fair enough. Then check the AV on the Exchange server and make sure it isn't actively scanning your BE services (if the backup server isn't the media server, then you're looking to make sure beremote.exe isn't being actively scanned).

If it is, put in an exclusion for this...

10MB/s isn't particularily fast. Are your NICs on your servers hard-coded to the fastest they can do (ie. 1GB FULL) along with your switch ports?

[EvanNY]

I will look at the switch ports.  

Turns out that 10MB/sec was from one PC to another on the LAN both with AV running and through remote desktop.  Probably not the most accurate test.

[vigneshwaran]

Hi,

   What is switch speed, I fyour switch speed is 1Gpps, then you can hardcode your server end. then you will get the full speed.

- vicky

[CraigV]

...please read my post from 11 September where I already mentioned this!

[EvanNY]

Switch and server speeds are correct.  No mismatches. 

Spoke with Symantec...still no help from them as of this point.  Hopefully speaking to them today.

As for other things i have tried...

We had an opportunity to reboot the active mailbox server...that did not help.

Tried to redirect to passive mailbox server, but being that info store is not running,. I don't think this can be done.

Tried restoring different media set...no difference.

I have not mentioned that we also run CA ArcServe...instant business recovery (IBR).  Basically this is a real time snapshot of our mail system. This snapshot is then sent off site to our disaster recovery site.  Do you think this has any effect on this restore speed?

Thanks again.

-Evan