On 11/03/2016 14:58, Juan Bernhard wrote:
Someone has experiences with ZFS and NFS(v3) in high load environments?
Thanks
Be careful to no do any synchronous writes under ZFS.
By default all NFS writes are synchronous but I assume dovcot sync
writes all data anyway so in this case the NFS sync doesn't matter.
Every sync write can take up to 3 seconds of latency (under freebsd,
I didnt test ZFS in linux).
sync writes should take a few ms (they do for me). If you have enough
load for them to be a problem you should have enough revenue to afford
an SSD as a ZFS write cache / SLOG and then they will no longer be a
problem.
