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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!europa.asd.contel.com!paladin.american.edu!auvm!SMYRNA.CC.VT.EDU!STELLR
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- Message-ID: <9301061450.AA08208@smyrna.cc.vt.edu>
- Newsgroups: bit.listserv.ibm7171
- Date: Wed, 6 Jan 1993 09:50:28 EST
- Sender: Protocol Converter list <IBM7171@TCSVM.BITNET>
- From: Ray Stell <stellr@SMYRNA.CC.VT.EDU>
- Subject: Re: 7171 failure rates
- Comments: To: IBM7171%TCSVM.BITNET@VTVM1.CC.VT.EDU
- In-Reply-To: <no.id>; from "BDK@unb.ca" at Jan 6, 93 9:19 am
- Lines: 32
-
- >
- > Have the failures all been on the same machine?
- >
- > Brian Kaye
- > University of New Brunswick
- >
-
- Thanks for the reply. No, three different boxes.
-
- Oh, but I see rose colored glasses here. What if the mean failure rate
- is 6.1 years. I said 5 years, plus, because the carbon dating data is
- not back from the lab. I don't know the age, I would like to determine
- that if possible.
-
- It is possible your boxes are of the same vintage as ours and you will loose
- three, tomorrow. What would you do? The repair turn around rate on the
- power supply is 6 weeks. Is that an acceptable down time for three of your
- boxes? Do you need to have eight backup units, or is one enough? I needed
- three. I might need more, and that's what I'm trying to get a handle
- on.
-
- So, my point is, in this community, is there a feel for the right backup
- level and can we determine the mean time to failure?
-
- Are the machines dated in anyway?
-
-
- I feel like I'm keeping a 72 Ford Pinto running, how many packs of
- chewing gum do I need? "Warp 10, Scotty." "She's gonna blow,
- Captain."
- ========================================================================
- stellr@smyrna.cc.vt.edu
-