Re: Hard disk warning
From: bob prohaska (bp_at_fib.eecs.berkeley.edu)
Date: Mon, 8 Nov 2004 03:06:05 +0000 (UTC)
thorn <email@example.com> wrote:
> HEllo to all,
> I have installed freeBSD version 5.2.1 at first and now I moved onto 5.3
> (made clean install) and there is one error that occurs on both
> version. It goes like this:
> ad0: Warning - Read_UDMA ICRC error(retrying request) LBA=20846031
> ad0: Failure - Read_UDMA status status=51<Ready, DSC, Error>
> error=84<ICRC, Aborted> LBA=20846031
> Fatal Server Error:
> _LoaderFileToMem() read() failed: input/output error
Looks like a bad block on your hard disk which is only read when
specific software starts up. See if the error repeats when the disk
If the error does repeat I think it's a sign the disk is due for
replacement; modern disks autodetect errors and remap them as
long as they have spare blocks. When the spare blocks are used up
it's time for a new disk.
In the very old days there was a program called "badblk" or "badblock"
which could tell the kernel how to work around disk problems; I think
it's long gone the way of the dodo and ST506 interfaces, there's no
mention of it in the man pages.