Yes, when we speed it up we played with the buffer settings.
 
# of buffers is set at 64, size is 32768.
 
When I started this 6 months ago, they said only professional services
could help me.  But I will say that the guy that came in did help,
because before it was talking 23 hours to backup.  With the multiple
streaming of the information stores, buffer changes, and installing the
STK tape drivers for windows instead of the Veritas ones, we saw
improvements.
 
I was talking with the disk fairies and they are going to relay out the
disks for the exchange servers.  They are saying, from what they are
seeing, this will also help with the read performance.  I will just have
to wait for them and be patience.
 
Kevin

________________________________

From: WEAVER, Simon (external) [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, July 31, 2007 9:32 AM
To: Kevin Whittaker; veritas-bu@mailman.eng.auburn.edu
Subject: RE: [Veritas-bu] Exchange 2003 Information Store Backup Slow


Ok fiber is very, very good, because that is what I use (very similar,
but all HP branded).
spoken to Veritas on what changes they made??
 
 

Regards

Simon Weaver
3rd Line Technical Support
Windows Domain Administrator 

EADS Astrium Limited, B23AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU

Email: [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> 

        -----Original Message-----
        From: Kevin Whittaker [mailto:[EMAIL PROTECTED] 
        Sent: Tuesday, July 31, 2007 2:19 PM
        To: WEAVER, Simon (external); veritas-bu@mailman.eng.auburn.edu
        Subject: RE: [Veritas-bu] Exchange 2003 Information Store Backup
Slow
        
        
        EMC DMX3000 disk..... I would have to ask the disk fairies what
type of disk, but I believe it is the high end EMC disk.  They have
their own Disk SAN setup with 2 fiber connections to ever server.

________________________________

        From: WEAVER, Simon (external)
[mailto:[EMAIL PROTECTED] 
        Sent: Tuesday, July 31, 2007 9:14 AM
        To: Kevin Whittaker; veritas-bu@mailman.eng.auburn.edu
        Subject: RE: [Veritas-bu] Exchange 2003 Information Store Backup
Slow
        
        
        kevin
        Forgot to ask, what sort of disks are the DB's on? High speed
fibre, or SCSI Internal drives or hot swappable?
         
         

        Regards

        Simon Weaver
        3rd Line Technical Support
        Windows Domain Administrator 

        EADS Astrium Limited, B23AA IM (DCS)
        Anchorage Road, Portsmouth, PO3 5PU

        Email: [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> 

                -----Original Message-----
                From: Kevin Whittaker
[mailto:[EMAIL PROTECTED] 
                Sent: Tuesday, July 31, 2007 12:36 PM
                To: WEAVER, Simon (external);
veritas-bu@mailman.eng.auburn.edu
                Subject: RE: [Veritas-bu] Exchange 2003 Information
Store Backup Slow
                
                
                1)  I checked and there is no tracker.exe running.
                2)  There is no AV running on it.
                 
                Checked event logs and only found entries about backing
up specific files under the information store.
                 
                Network speed?!?  They are SAN MEDIA Servers, and backup
directly to the SSO drives.
                 
                Yes the policy is configured to use the storage unit for
the media server.
                 
                Seeing your backup time does not sound positive to me.
                 
                75GB in 47 mins, means taking my 805GB divide by 75GB =
10.72 hours!

________________________________

                From: WEAVER, Simon (external)
[mailto:[EMAIL PROTECTED] 
                Sent: Tuesday, July 31, 2007 1:19 AM
                To: Kevin Whittaker; veritas-bu@mailman.eng.auburn.edu
                Subject: RE: [Veritas-bu] Exchange 2003 Information
Store Backup Slow
                
                
                Hi
                Well my Ex2k3 is a SAN Media - get approx 60 - 80GB+ - I
backup the information store policy and it uses one drive.
                 
                You can use the * at the end to stream the stores (which
sounds like the route veritas has made).
                 
                To give you an idea, checking last nights backup took
47 mins to backup 75GB
                 
                I use SSO/SAN/Fiber/LTO3 HP ESL Library.
                 
                Two things to look at:
                1) Make sure tracker.exe is not running locally on the
Exchange box (Start, Run, type MSCONFIG and goto the STARTUP tab)
                2) Turn off any AV for the Windows operating system (do
not turn off Exchange AV)
                 
                Any errors in the event logs? Almost sounds like Network
speeds to me.
                 
                your policy is configured to use the storage unit for
the Media Server?
                 
                Hope this helps (a little!)
                 
                 

                Regards

                Simon Weaver
                3rd Line Technical Support
                Windows Domain Administrator 

                EADS Astrium Limited, B23AA IM (DCS)
                Anchorage Road, Portsmouth, PO3 5PU

                Email: [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> 

                        -----Original Message-----
                        From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Kevin
Whittaker
                        Sent: Monday, July 30, 2007 7:17 PM
                        To: veritas-bu@mailman.eng.auburn.edu
                        Subject: [Veritas-bu] Exchange 2003 Information
Store Backup Slow
                        
                        

                        All, 

                        I have 2 Exchange 2003 servers, both running
Server 2003 SP2.  I will have to admit I don't know much about the 2003
exchange setup, but I was told that they are on the latest patches for
Exchange.  Both servers are SAN Media servers and backup to a tape drive
via SSO.  The Silo is a L700E with 9940B tape drives.  The Disk space is
actually EMC drives via a Disk SAN.  The backup is a Full backup every
night.

                        Here is the issue... the backup doesn't run very
fast at least I don't think so. 

                        Six months ago, we had Veritas come in and look
at them and help speed them up.  We did 2 things;  One we set limits on
the mailboxes of people so the overall size of the information stores
when down from 1.2TB to 705GB.  Two, we changed the backups to backup
each of the 4 information stores at the same time and multiplex them.

                        1st Exchange Server:  (Total 81.4GB per hour) 
                        SG1     Mail            20.3GB per hour 
                        SG2     Mail            20.5GB per hour 
                        SG3     Mail            20.1GB per hour 
                        SG4     Public Folder   20.5GB per hour 

                        2nd Exchange Server: (Total 82.6GB per hour) 
                        SG1     Mail            19.5GB per hour 
                        SG2     Mail            19.9GB per hour 
                        SG3     Mail            19.4GB per hour 
                        SG4     Mail            23.8GB per hour 

                        Since that translates to about 22.5MB per second
on tape drives that should be able to do about 60MB.  I have a couple
Windows 2003 server backups over the network that are doing 35MB per
second!

                        So, does anybody get about the same performance?
Better?  Any ideas about things to look at? 

                        Kevin Whittaker 
                        Syniverse Technologies 
                        Systems Engineer - UNIX Admin 
                        Work: (813) 637-5502 
                        Cell: (813) 810-6456 

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