zfs discuss - Dec 2010 - Detecting erronous drives without TLER?

Hi all

I''ve just setup a new system with 11 x 7-drive RAIDz2 VDEVS. Running
iozone to benchmark and test the system, it seems it''s running horribly
slow. iostat -xd shows one (or two) drives slowing down the bunch, and
zfs-stats.sh (by Alasdair, grab it from http://karlsbakk.net/zfs-stats.sh )
shows two drives which behave somewhat non-optimal. One of them, c8t13d0, seems
to be behaving rather badly, while the other, c4t17d0, has fewer errors, but
still points in the direction of Something Being Wrong. See
http://pastebin.com/ySmzBgMq for zpool status and zfs-stat.sh output.

Is there a way to reduce the number of errors before a drive is flagged as bad
in the pool?

Vennlige hilsener / Best regards

roy
--
Roy Sigurd Karlsbakk
(+47) 97542685
roy at karlsbakk.net
http://blogg.karlsbakk.net/
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er
et element?rt imperativ for alle pedagoger ? unng? eksessiv anvendelse av
idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og
relevante synonymer p? norsk.