said:
>substantial foam padding all around. Ever had a repair experience like
>this ? I haven't. These folks also repair hard drives -- probably
Yep, quality vendors work this way. They want you to come back again.
It's a lot cheaper than finding new customers all the time.
>This one trial after changing the transfer rate is hardly
>definitive, but assuming it holds up, I'm left wondering how a SCSI
>hardware setting that worked fine for a couple years suddenly stops
>working, absent any other changes to hardware or OS or backup app.s ?
Even though there are no moving parts you can see in a cable, they do
exist. They are called electrons. They cause heat and that, over time,
causes the insulation to deteriorate. Also, there's this thing called
air. The connectors are designed to be relatively airtight, but over
time, you still get oxidation. Also/2, vibration can loosen up
connections, over time. Finally, the resistors in the the terminators and
the connectors deteriorate due to the effects of heat and air. All this
contributes to noise which makes it harder for the electronics to see the
data.
>Note to Steven, in case it is significant: even when the drive was
>bombing out on most backup attempts, it could still reliably do Restores
>(even from old 120 meter tapes), in many tests that I ran.
DAT drives do read after write validation during the write cycle. This is
what generated the failure report. There are a lot of reasons why this
might have occured, both hardware and software.
Steven
--
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"Steven Levine" MR2/ICE 2.31a #10183 Warp4/FP15/14.085_W4
www.scoug.com irc.webbnet.org #scoug (Wed 7pm PST)
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