Re: hardware quote comments?
hi ya petro
good you;ve got feedback..
> > - raw rpm speed by itself doesnt matter ...
> > - 7200rpm ide disks runs hotter than 5400 rpm ide disks :-)
>
> Oh yeah they do, but fans are cheap, and (for my application) noise
> is irrelevant. If the machines are running too hot, I yell at
> facilities to pump more cold air into the cage.
hey.. thats cheating :-)
> > - ata-33 ( 33MB/sec) vs scsi-3 (20MB/sec ) comparason doesnt matter ??
> > - its comparing different "numbers" ...
> > ( but actual data transfer of the same test program is a
>
> It also matters what kinds of transfers you are doing. Streaming a
> 2 GB media file into memory (for editing) or out onto the network
> is a lot different that making 2GB of changes to a 130GB database.
yuppers.. streaming servers is way different than db servers
...
> > - transfer speeds are comparable ???
>
> In the real world? Probably. YAMV.
yup...and the benchmarks can be tailored to suit ones needs
> > -- btw IBM 40GB and 60GB are pure junk !!! all the disks that failed
> > are IBM drives...
>
> We've been killing the 75GB Deskstars like flies in a bug zapper.
>
> 10 coming in off RMA this week, 10 more next week etc...
>
> > -- hott scsi disks are also sitting on my desk... higher death rates
> > of scsi disks vs ide disks as a ratio of number of numbers in use...
>
> I've had the opposite experience recently.
> (25% failure rate after a month on Maxtor 120G (sample size 4),
> 40-50% failure rate on the Deskstars after about 6 months use
> (although not until they were put into production on DB machines,
> none had failed previously).
> About 5% or less failure rate on the 9G IBM and Quantum drives that
> have been in production for 18 months to 2 years (sample size
> roughly 200). None of the 34G IBM SCSIs (sample size 20) have failed yet.
ouch.... 40GB IBMers ( deskstar series ) has about a 2% failure rate
for us.... we donno why people still keep insisting IBM ide disks... :-)
thats across several hundred of um.... 60/80GB deskstars seems lots
better...
- seagates, maxtors, quantums, fujitsu... would be better IDE choices??
- no failures on them... so far... also over a 2 year sample
period
not many people buying them 120GB/160GB disks.... 6 or 8 at a time in a 1U
server...
our failure rates for scsi-2 disks is abot 50%.... granted not many put
disk fans back than.. but its highly recommended to do so..
sample size...handful...so 50% is misleading... :-)
have fun
alvin
-- its fun to ship P3-1.0G without cpu fan.... we take them puppies off
of the heatsink... and it runs cooler with just our itty-bitty side
fans
- guess blowing air straight down has no benefits???
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