[zfs-discuss] root pool mirror problems

Roy Sigurd Karlsbakk
2010-05-20T09:58:04Z

----- "roi shidlovsky" <roi.shidlovsky at ecitele.com> skrev:

> hi.
> i am trying to attach a mirror disk to my root pool. if the two disk
> are the same size.. it all works fine, but if the two disks are with
> different size (8GB and 7.5GB) i get a "I/O error" on the attach
> command.
>
> can anybody tell me what am i doing wrong?

I think the best way to solve this will be to slice up the drives. If the
difference is as large as this, slices are likely to help you there. As others
have mentioned, you can attach an 8GB mirror to a 7,5GB drive, but then, if you
have autogrow=on and detach the 7,5GB drive and try to attach another 7,5GB
drive, I don''t think it''ll work very well. Again, I''d
use slices. I think, though, osol disables write cache if working with slices,
and not drives. A also think this can be forced to on, but I don''t know
how

Vennlige hilsener / Best regards

roy
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Roy Sigurd Karlsbakk
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