disk drive questions

From: Mary J. Aumann <mja_at_svsu.edu>
Date: Mon, 28 Sep 1998 08:40:06 -0400 (Eastern Daylight Time)

Hi All,

We are currently looking to purchase new disk drives for an Alpha 2100a.
We are currenly using Storage Works RAID array 200, Raid level 5. I would
appreciate any opinions on the following:

  Which is faster, raid level 5 or mirroring?
  Is assigning each drive in the raid controller a separate scsi
id(channel?) worth while? How do you do this?
  Is anyone using raid level 0+1, is this better than raid level 5?
  Is it better, more efficient, to have 3 or 4 drives in the raid
controller?

We are looking to purchase either 9 or 18 gig drives. Any advice is
greatly appreciated. Thanks in advance!

----------------------------------------------------------------------------
Mary J. Aumann Saginaw Valley State University
Lead Operations Specialist 7400 Bay Road
mja_at_svsu.edu University Center, MI 48710
Received on Mon Sep 28 1998 - 12:44:18 NZST

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