ADSM-L

Re: Exchange backup performance

2003-12-19 08:13:18
Subject: Re: Exchange backup performance
From: Del Hoobler <hoobler AT US.IBM DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 19 Dec 2003 08:12:54 -0500
Greg,

Go to:


http://www.ibm.com/software/sysmgmt/products/support/IBMTivoliStorageManagerforMail.html

and enter the following in the Search box:

   exchange backup performance

There is an article (ID# 1144592) titled:

   "Data Protection for Exchange On-line Backup Performance is Slow

that discusses one possible solution. It has to do with the
Exchange Server setting that Dave talked about, i.e.

   "Zero out deleted database pages"

There is also a Microsoft KB article on the same topic (KB 815068):

   "XADM: Online Backup Performance Decreases Over Time"

Thanks,

Del

----------------------------------------------------
> I am trying to see if anyone has any quick suggestions on backing up
> Exchange 2000.  I am seeing some horrible performance as you can see
> from the below stats.  This server has never had speedy TDP backups,
> BAclient backups normally are in the 10MB/sec range.
>
> The connection is a gigabit connection, from the tcp transfer tests I
> have done with WSTTCP I should be able to hit 18MB/sec.
>
> My Domino servers with 350Gb of data on the same network hit upwards of
> 14MB/sec.  One thing that I am noticing is that store.exe is consuming
> 90% of the cpu.
>
> These stats are from a full backup taken when no-one else was using the
> TSM server or the exchange server.
>
> 12/15/2003 14:23:34 Total storage groups requested for backup:  1
> 12/15/2003 14:23:34 Total storage groups backed up:             1
> 12/15/2003 14:23:34 Total storage groups expired:               8
> 12/15/2003 14:23:34 Total storage groups excluded:              0
> 12/15/2003 14:23:34 Throughput rate:                            2,956.63
> Kb/Sec
> 12/15/2003 14:23:34 Total bytes transferred:
> 55,004,847,682
> 12/15/2003 14:23:34 Elapsed processing time:
> 18,167.84 Secs
>
> Does anyone have any suggestions?  Maybe exchange tuning? Anything is
> appreciated.

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