<snip>
A more useful approach though, is to install kernel-utils from rawhide
(I've got 2.4-8.31 here) which includes smartctl which uses the
S.M.A.R.T. stuff to monitor the health of your disks. Disks generally
know when they're going to fail and you can monitor your disks with
"smartd" to keep an eye on them. Definitiely recommend that if you
got at least one disk somewhere.
</snip>
Now that's NEWS to me (then again.. being a newb in the OSS arena, there's a
lot of things I still don't know..LOL)
Cheers, .^.
Mun Heng, Ow /V\
H/M Engineering /( )\
Western Digital M'sia ^^-^^
DID : 03-7870 5168 The Linux Advocate
-----Original Message-----
From: John Haxby [mailto:jch@xxxxxxxxxxxxxxx]
Sent: Thursday, October 09, 2003 4:06 PM
To: shrike-list@xxxxxxxxxx
Subject: Re: How to check filesystem for curroption
Ow Mun Heng wrote:
><snip>
>The only thing I might want to try is to run a badblock check on the
>drive(s) just in case there was some actual physical damage.
></snip>
>
>And how do you do that???
>
>
Well, unless your disk drive is broken, simply removing the power from
it doesn't do any damage. (Well, you could break it eventually by just
powering it up and down often enough, but the same goes for anything
from a lightbulb to a supertanker.) In fact, disks have enough
residual power to finish writing the current block when the power down,
something that ext3 knows about and which is vitally important (I recall
reading about this somewhere in a discussion of ext3 and journalling
file systems).
Anyway, if you're really worried,
badblocks -s /dev/hda
will do a read-only scan of the disk. If I run this I do it when the
system is idle as it does tend to cause some performance degradation :-)
Don't use badblocks -w unless you want to trash the disk though.
A more useful approach though, is to install kernel-utils from rawhide
(I've got 2.4-8.31 here) which includes smartctl which uses the
S.M.A.R.T. stuff to monitor the health of your disks. Disks generally
know when they're going to fail and you can monitor your disks with
"smartd" to keep an eye on them. Definitiely recommend that if you
got at least one disk somewhere.
jch
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