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'[OT]: Double HD failure'
2002\10\31@154049 by Sean Breheny

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Hi all,

I have a computer that had two Maxtor drives (a 60GB 5T060H6 and an 80GB
98196h8, both IDE Ultra ATA/100s) fail at the same time (or close to the
same
time). One of them is making clicking sounds often while running and the
other makes no strange noises but neither gets recognized on that
computer or on any other I've tried. They were both on the same IDE
interface card (a Promise Technology ULTRA ATA/100 card, which was
necessary because this is a server and has no built-in IDE interface),
but they were both masters on separate connectors on the card (primary
and secondary).

They were only about 1.5 years old and worked fine up until recently.
I've had very good luck with Maxtors in general, and I've NEVER had two
HDs die at the same time.

Any ideas what might have happened?

Sean

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'[OT]: Double HD failure'
2002\11\01@025046 by Michael Rigby-Jones
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{Quote hidden}

Vibration, excessive heat and excessive voltage seem to be the favorite hard
drive killers.  May be an idea to check the PSU regulation, I had to fix a
PC in which components kept dying mysteriously and it turned out to be the
cheapo PSU.

Pretty bad luck having two go down though, and I have always had good
experiences with Maxtors.

Regards

Mike

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2002\11\01@110116 by johnc

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Michael Rigby-Jones wrote:

{Quote hidden}

   Is you hard disk running at 7200 rpm? Just a hunch.


{Quote hidden}

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2002\11\01@112008 by Jim

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I've had good luck with Maxtors too - one of
which is a 60 GB unit in a removable tray that
has several small built-in fans ...

RF Jim

> Pretty bad luck having two go down though, and I have always had good
> experiences with Maxtors.
>
> Regards
>
> Mike
>

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2002\11\01@133614 by Paul Hutchinson

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I've seen this multiple HDD failure scenario twice in the past four years
and, heard about one other case a friend encountered 10 years ago.

The first time I encountered this problem was with an fairly expensive DEC
server. It was covered under warranty and the regular field techs from DEC
replaced both (very $$$) HDD's quickly. Within a couple weeks both drives
were dead again, this time the techs replaced the SCSI RAID controller and
both HDD's with units from a different supplier. Well within a couple more
weeks the HDD's were dead again. This is when I asked a friend if he'd ever
seen a similar problem. He had seen it one time when he worked making
industrial PC's, it had turned out that the power supply was intermittently
surging the 12V lines only. When DEC sent out their senior field tech to
look at the problem I mentioned the power supply scenario and he thought it
was worth a try. With a new power supply and two more HDD's that server has
now worked flawlessly for four years.

The next time I saw this problem was just two weeks ago on one of my home
servers. At first it seemed like I had a normal single drive failure so I
pulled the dead drive and slapped in a spare but I couldn't get it
recognized by BIOS. After swapping things around and trying other drives I
figured out that the other HDD was also partially damaged in that it would
no longer allow a slave drive to work. Since PC power supplies are less
expensive than good HDD's I replaced the power supply before installing any
new drives.

Paul

> {Original Message removed}

2002\11\01@134410 by Sean H. Breheny

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Thanks to all who responded.

The power supply is what I suspect, too, although this is a Dell PowerEdge
Server so I wouldn't think they use cheap power supplies. I'll look into
how much it would cost to replace the PS. The interesting thing is that
nothing else (not even the other HDs in the system, which are SCSI
Ultra2-LVDs) failed. I was also considering the possibility that somehow
one HD failed in such a way that it applied high voltages to some lines
that the two HDs shared in common (since they were plugged into the same
card although on different connectors).

Sean

At 01:34 PM 11/1/2002 -0500, you wrote:
>I've seen this multiple HDD failure scenario twice in the past four years
>and, heard about one other case a friend encountered 10 years ago.

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2002\11\01@185615 by Jim

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Wow, Paul.

Your experience makes for a good case for installing
some externally accesable power supply 'test points'
for monitoring with scope and DVM occasionally to
insure the power supplies are healthy.

... maybe even a good application for a PIC with on board
A/D as well to measure and alarm on faulty DC conditions!

RF Jim



{Original Message removed}

2002\11\02@025127 by James Newton, webhost

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source= http://www.piclist.com/postbot.asp?id=piclist\2002\10\31\154049a

Physical Trauma? Box dropped while you were out?

Power surge, but I would expect the rest of the box to go before the drives.
Unless the surge was just on the PS leads used by the drives.

Another possibility is heat.. drives get hot inside and the bearings can
fry. Ask Adam about the number of fans and temp sensors I have in the
PICList server! <GRIN>

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2002\11\02@032424 by Peter L. Peres

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On Thu, 31 Oct 2002, Sean Breheny wrote:

*>Any ideas what might have happened?

I've once had a faulty fan bearing cause a nearby hdd to fail prematurely
(by vibration over weeks).  Was the clicking/vibrating drive mounted near
the 'good' one ?

Peter

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2002\11\02@035317 by Roman Black

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James Newton, webhost wrote:
>
> source= http://www.piclist.com/postbot.asp?id=piclist\2002\10\31\154049a
>
> Physical Trauma? Box dropped while you were out?
>
> Power surge, but I would expect the rest of the box to go before the drives.
> Unless the surge was just on the PS leads used by the drives.


I have a "grumpy" friend who had a bad habit of
thumping his PC box whenever windows got slow etc,
which is often.

The hard drive started to fail after some months
and over a few days then lost more and more sectors,
we were lucky to get 80% of his stuff off it before
it was fubar.

Now he doesn't thump it anymore, and grumps at
anyone walking too *heavily* past his desk lest
they might wreck his new one. :o)
-Roman

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