Re: raid5+hotspare: request for recommended procedure

["Stefan G. Weichinger" <lists@xunil.at>]

Am 2010-09-29 12:03, schrieb Tim Small:

> Run smartctl -t long, and see what the LBA of the errors are (smartctl
> -a when finished, and look at the error log) - it may be that it is
> outside of the used space (e.g. right at the end of the drive - I've
> seen this in the past) if this is the case, you can just dd over it.

I will do that maybe after the repair-action is through ...

Could you tell me in detail what you mean by "dd over it" ? Write zeros
there or what ...?

> If the test completes without error then the unreadable sector is either
> not user-addressable, or doesn't really exist, in which case I'd ignore
> it (or perhaps a security-erase will get the drive back into a sensible
> state).  Some of the earlier firmwares for the ST3250310NS were a little
> buggy in my experience, so you might want to look at upgrading it
> (latest Seagate non-OEM firmware is SN06), which can be done with hdparm.

You know I really hesitate with such low-level-stuff as the server is
far away and I won't be able to just boot from a live-cd or something
... so I am very cautious with my steps.

Thanks so far, Stefan