NFS zfs serveur (hardware question)

David Brodbeck gull at
Sun Jun 26 06:43:30 UTC 2011

On Sat, Jun 25, 2011 at 5:07 AM, Peter Toth <freebsd at> wrote:
> There is still a way to increase NFS performance in 9.0 (without a ZIL
> SSD) by setting zfs property "sync=disabled", which will disable
> synchronous writes - comes with some risks, research it before switching
> it off. Also, this will only disable sync for the ZFS filesystem not for
> the whole pool.

Thanks, I'll look into that.

I do appreciate that ZFS tries to be more careful about sync writes
than most filesystems.  But I also have users who expect "tar xvf" to
complete in a reasonable amount of time, and having the ZIL enabled
reduces file creation performance by a factor of ten. ;)

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