, and on my system: man, info, apropos and emerge
(a gentoo distribution tool) for "sar". I did not find anything I
thought was relevant....
On Fri, 14 Sep 2007 15:18:22 -0700 (PDT), "Mike Leo" <mleo963(a)yahoo.com>
I learned about "sar" last night due to a
server outage...check it out.
I think it will server your purpose
----- Original Message ----
From: Andy Stewart <andystewart(a)comcast.net>
To: Worcester Linux Users Group <wlug(a)mail.wlug.org>
Sent: Friday, September 14, 2007 5:42:55 PM
Subject: Re: [Wlug] System diagnostics
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Michael Long wrote:
I just install Ubuntu 6.06 lts. With the box up and running it appears
that there is disk activity because the light on the case is active.
However running top shows the box is basically idle (CPU < 1%) and "ps
aux" shows nothing unusual. I do not claim to be a sys admin however so
I may not be interpreting things correctly. The fans seem to be working
harder than before as well.
What command line tools should I be looking at determine the health of
the machine and drives. The os is on an IDE drive and I have a raid
(MegaRAID) for the other drive.
I know this is a bit vague but I am not sure where to start. I have been
using opensuse but now I do not have x or the other tools that come
bundled with kde.
Here's what I would try:
a) Are you sure that the disk activity light on the case is properly
wired to your MB? Is the light constantly on, or does it flicker?
b) unplug the network cable to insure that the disk activity isn't
caused by something on the network
c) If you are sufficiently patient and wait, does the activity stop (say
in 5-10 minute)?
d) What happens if you run "tail -f /var/log/messages" as root ? Lots
of messages here could cause disk activity.
I'm sure other folks with have other ideas, but that's my 2cents,
devalued for inflation.
Andy Stewart, Founder
Worcester Linux Users' Group (http://www.wlug.org
Chelmsford Linux Meetup Group (http://linux.meetup.com/393
Amateur Radio: KB1OIQ
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