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Thanks Khalid. I have three scsi drives, one contains everything
except /home. the other two drives are linux raid and are mounted at
/home.<br>
<br>
The machine was acting up with some daemons, so I tried to restart a
couple. None of them would restart because the pid files stuck
around. And that was because var was mounted as read only - which
wasn't something I had done. Some Googling indicated that sometimes
the filesystems get kicked over to read only if there's hard drive
problems. <br>
<br>
At that point I had services not running that couldn't be restarted.
So I attempted to reboot, and it wouldn't. shutdown -r now gave me
back a command prompt.<br>
<br>
So I tried dmesg. And that gave me a bunch of what looked like hard
drive i/o errors.<br>
<br>
So, (wince), I cycled the power remotely. And it came back.
Everythings running wonderfully. I'm just left with a nagging feeling
of potential future problems.<br>
<br>
As for plugging the drives in, this is my live webserver in Toronto
:). <br>
<br>
Which also reminds me, I've got to get my automated remote backups up
and going again!<br>
<br>
<br>
<br>
<br>
<br>
On 01/06/10 07:14 PM, Khalid Baheyeldin wrote:
<blockquote
cite="mid:AANLkTil8kix01AzCDxVuw5_1IYjvWyVCd5g5UNDeUCP3@mail.gmail.com"
type="cite">On Tue, Jun 1, 2010 at 7:03 PM, Insurance Squared Inc. <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:gcooke@insurancesquared.com">gcooke@insurancesquared.com</a>></span>
wrote:<br>
<div class="gmail_quote">
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">My
server that is running linux raid barfed up today. </blockquote>
<div><br>
Better provide some more detail: what color was the barf, did it smell?<br>
Was it projectile? Did the server eat from a street vendor recently. <br>
<br>
All that will help narrow down the bacteria, errr the problem ...<br>
<br>
</div>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I'm
suspicious that I may have hard drive problems.<br>
</blockquote>
<div><br>
What led you to think that?<br>
<br>
</div>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">How
would would step through diagnosing such concerns under linux?</blockquote>
<div><br>
Do you have an external enclosure for the same connector type<br>
(I mean SATA, ATA, ...etc.)<br>
<br>
If so, take the disks one by one and plug them in and watch dmesg.<br>
Each disk should get an incremental letter, and then some info on<br>
its hardware (manufacturer, model, capacity), and then partition <br>
information.<br>
<br>
You can then try accessing the disk, e.g. <br>
<br>
dd if=/dev/sdb of=/dev/null count=100000<br>
<br>
Then try mounting the partition, and see if you can access it.<br>
<br>
</div>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
<br>
g.<br>
<br>
<br>
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</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
Khalid M. Baheyeldin<br>
<a moz-do-not-send="true" href="http://2bits.com">2bits.com</a>, Inc.<br>
<a moz-do-not-send="true" href="http://2bits.com">http://2bits.com</a><br>
Drupal optimization, development, customization and consulting.<br>
Simplicity is prerequisite for reliability. -- Edsger W.Dijkstra<br>
Simplicity is the ultimate sophistication. -- Leonardo da Vinci<br>
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