not exactly the same study, but Gartner white paper on iNation site lists
major servers
& "single server reliability" with a rating for comparison.
http://www-1.ibm.com/servers/eserver/iseries/nation/cio/

also, the IDC Total Cost of Ownership Study -2001 has a "unplanned downtime"
chart comparing
iSeries to Unix & Intel servers.

hth
jim franz

----- Original Message -----
From: "David Gibbs" <david@midrange.com>
To: <midrange-l@midrange.com>
Sent: Sunday, December 30, 2001 1:56 PM
Subject: Reliability?


> Folks:
>
> I was searching through some posts I made a while back (on another forum)
> and found this URL on AS400 Reliabliity...
>
> http://www.as400.ibm.com/developer/cbc/as400perf/index37.htm
>
> To summarize: S/390 (sysplexed, downtime = 10 minutes, Tandem 1.7 hrs,
400,
> 2-4 hours, NT 224 hours).
>
> Anyone know if this has been updated?
>
> It is based on a Oct 98 Gartner study.
>
> Thanks!
>
> david
>
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