what happens to pool if ZIL dies on ZFS v14

Bryan Drewery bryan at shatow.net
Fri Sep 17 15:40:40 UTC 2010


Gil Vidals wrote:
> I read a forum post claiming that FreeBSD's ZFS v13 will not continue to
> function normally when the dedicated ZIL devices dies or goes away.
> Apparently the Solaris version of ZFS does support losing the ZIL. So can
> somebody confirm what happens in FreeBSD 8.1 (ZFS v14)?
>
>   
Yes that is correct. You should mirror your log devices to avoid problems.

zfs v19 allows removing log devices - so mirroring will not be necessary 
after that point.
opensolaris$ zpool upgrade -v|grep Log
 19  Log device removal


Bryan


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