Re: ICH7 sata-ahci + software raid warning

[Justin Piszcz <jpiszcz@lucidpixels.com>]

On Tue, 11 Jul 2006, Francois Barre wrote:

> 2006/7/11, Justin Piszcz <jpiszcz@lucidpixels.com>:
>> Why not just --set-faulty or --fail with mdadm?
>> 
>
> If you answer to "Bad blocks maybe, can't test that.", I'll say AFAIK,
> --set-faulty will only stay at the md layer, and won't go through the
> underlying driver (sata here, ata elsewhere, ...), so this will not
> help diagnose the driver behaviour on block read problem.
>
> If you answer to the fact that md does not mark the drive faulty, I
> guess Christian was refering to an automatic to mark the disk faulty,
> not a manual way, in order, for exemple, to trigger a resync with a
> spare drive just after a drive failure has been detected (and not only
> after the admin found it).
>
> As an ugly workaround, a daemon script could look at the current drive
> status regularly (in /sys, in /proc or trying to read /dev/sd?), and
> mark the drive faulty on error...
>

For ICH5 and all other controllers (non-AHCI) of course, I've always seen 
md mark it faulty on a bad disk/sector/etc.

I thought you were just trying to mark it faulty manually for the purpose 
of rebuilding it.

Justin.