Giovanni Tirloni <tirl...@gmail.com> wrote:
> We use Seagate Barracuda ES.2 1TB disks and every time the OS starts
> to bang on a region of the disk with bad blocks (which essentially
> degrades the performance of the whole pool) we get a call from our
> clients complaining about NFS timeouts. They usually last for 5
> minutes but I've seen it last for a whole hour while the drive is
> slowly dying. Off-lining the faulty disk fixes it.
>
> I'm trying to find out how the disks' firmware is programmed
> (timeouts, retries, etc) but so far nothing in the official docs. In
> this case the disk's retry timeout seem way too high for our needs and
> I believe a timeout limit imposed by the OS would help.
Did you upgrade the firmware last spring?
There is a known bug in the firmware that may let them go into alzheimer mode.
Jörg
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