NetApp NFS vs. ZFS and NFS for Maildir

Fri Mar 11 15:04:42 UTC 2016

On 3/11/2016 9:58 AM, Juan Bernhard <juan at inti.gob.ar> wrote:
> Be careful to no do any synchronous writes under ZFS. Every sync write 
> can take up to 3 seconds of latency (under freebsd, I didnt test ZFS in 
> linux). Im using it in a 3k user environment and works great with a 4TB 
> raid 10, and dovecot cache files in a SSD disk.

>From what I've heard you should not use hardware based RAID (ie, RAID10)
setups with ZFS, you should let ZFS handle it.

Maybe that is the source of your latency issues?