The best practice in setting the RAID Configuration for Exchange Server 2007
Hi All, Im currently in the process of rebuilding my Dell 2950-III server which has got these specs: 1x Quadcore Xeon 5420 @ 2.33 GHz 5x 400 GB SAS 10k rpm HDD Dell PERC 6/I RAID Controllers 16 GB RAM RAID connector 0: 4 HDD RAID connector 1: 1 HDD While inside the Dell RAID configuration utility apps, I saw the following configuration: Stripe Element Size: 64k Read Policy: No Read Ahead* Write Policy: Write Back Disk Cache Policy: Disabled From: http://g4u0420c.houston.hp.com/en/B7961-90025/ch12s02.html You cannot set the read policy on a RAID-5 data plex. RAID-5 plexes have their own read policy (RAID). As Im about to use this server as the RAID-5 for Exchange Server 2007, is there anything that I could tune for the best performance? Thanks, AWT /* Support Engineer */
April 27th, 2009 5:08am

We can get the recommended configuration suggestions by putting RAID 5 into Storage Requirements Calculator I assume that its a small/middle size environment, so IOPS shouldnt be the issue. Otherwise, please consider using RAID 10, the following resources will help Resources: Storage Technology Planning Storage Configurations How Microsoft IT designs the storage RAID 10 vs. RAID 5 for Exchange 2007 Database Store configuration
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April 27th, 2009 10:20am

How's the deployment? Any update?
May 11th, 2009 8:17am

it went fine, it seems that having a faster 10k rpm SAS drive could be a big impact in terms of memory usage (now lower). I guess it is because the email queue scanned and processed faster :-) Cheers./* Windows Infrastructure Support Engineer */
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May 12th, 2009 4:14pm

Great, glad the deployment goes well, and thanks to your knowledge at here, which is definitely valuable for those who want to set the same scenario
May 13th, 2009 4:14am

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