On Fri, 5 Dec 2003, Paul Morgan wrote:

> > - disks doesn't fail as often as a power supply
> >     -- hint.. add a nice fan for each disk
> > 
> 
> My experience is the opposite: I have never had a power supply fail, but I
> have had several disks fail.

everybody's experiences will be different because:
        - some people buy good products, some people buy cheap stuff
        - some people add fans where needed, some people dont

        - there are always exception to the rule of "good stuff"
        ( like ibm's major [EMAIL PROTECTED] with their deskstar series of drives,
        ( caused them to sell their entire disk drive division to hitachi 
        ( -- just kidding .. but the timing is good for a joke

given the same system ... things that should die first would be based
on MTBF ... ( mean time between failure ) all rated at 25C

Warranty period is probably closely related to MTBF ...

        - fans ( typically no warranty ... )

        - power supplies ( some have 100,000 hrs if you believe it )
                which confirms Pauls experiences w/ power supply vs disks       

                example: http://www.sparklepower.com/pdf/FSP300-60GRE.pdf

        - disks ( typically warrantied for 1-3 yrs )

        - cpu has an mtbf around 30,000 hrs ( about 5 yrs )
                http://www.Linux-1U.net/CPU/

                -- notice that your cpu lifespan dies 2x faster for each
                10C increase in temp

c ya
alvin


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