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On 16/09/2011 13:30, freebsd@top-consulting.net wrote:

> Is zfs supposed to be faster if you let it manage the disks directly ?
> 

Not necessarily faster (in fact, RAID-Z variants have known limitations
which are not so pronounced in RAID5/6), but definitely more convenient
and in some respects safer.

I would test very carefully if you need speed and stability from ZFS.
For one thing, you will probably want to reduce the block size in ZFS to
8K or such.