RE: DASD failure

["Goins, Kirk : CO IR" <KGoins@xxxxxxx>]

How many disk drives total? If each machine has 10 on an avg then that's
400 drives and 5 equals 1.25 percent. If there's 1 drive per cpu then
your at 12.5 percent. I most cases I bet 3 or 4 of those 5 are on the
older machines. Sys/38 and AS/400s are not kind to disk, they really
beat them up.

If these are total failures were all data was lost and you are not
mirrored or using raid5, and recovery time is not acceptable... Then you
may now have the need info/reason for management ti invest in one of
those options.

So back to your question.. is this a high fallout rate?? Depends


 ----------
From: Denis Robitaille
To: MIDRANGE-L@lhs.org
Subject: DASD failure
Date: Thursday, July 16, 1998 12:39PM

Hello all,

Our company has about 40 AS/400 in north america. The machines are
betwen 1 and 4 years old. In the last 6 months, we had to replace 5 disk
due to failure (crashed). To me this number of crash seems High but IBM
told us this was noting out of the ordinary.

I dont have the number but i tought that the mean time between failure
of the AS/400 was much greater.

What do you think?

Denis Robitaille
Cascades inc.
Tel: 819-363-5187
DRobitaille@cascades.com

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