Your compaq vendor should be able to give you performance difference between
the raid configurations.
IIRC about 5 % slower using RADI5 than RAID 1 on write
see
http://www.compaq.com/products/storageworks/smartarray-controllers/SA5300ind
ex.html
http://www.compaq.com/support/techpubs/whitepapers/0291-0799-a.html
have a browse
cheers
Dean
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Mark Harford
Sent: Friday, August 10, 2001 5:52 AM
To: Exchange Discussions
Subject: 36gb Drives in RAID 5 array?
We are debating whether 36gb disks are fast enough to use in a RAID5 array
or whether they really only ought to be used in RAID1 or RAID0+1 arrays.
Planned configuration: -
Exchange 2000 user server (2000 users)
Compaq Proliant DL580
5304/128 Raid Controller
OS & Pagefile on dedicated RAID1 pair
Exchange Logs on dedicated RAID1 pair
Exchange Information Store on either
RAID5 + online spare array of 14*36GB disks OR
RAID0+1 array of 14*36Gb disks
The RAID5 array would give us more space and so be cheaper, but could affect
performance.
Anyone have experience or opinions on this type of setup?
Thanks
Mark
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