On Fri, 11 Mar 2016 11:58:00 -0300 Juan Bernhard <j...@inti.gob.ar> wrote:
> > El 11/03/2016 a las 11:22 a.m., Alessio Cecchi escribió: > > Hi, > > > > I'm evaluating to switch from NetApp to a ZFS appliance (like Qsan). Our > > setup is Dovecot, Maildir for email storage and NFS to share mailboxes > > (more than 30k users) across POP/IMAP and MX servers. > > > > NetApp NFS works fine also under high load but have some limitation for > > inode numbers per Volume and is expensive (but recently their prices > > have dropped). > > > > ZFS, I read, suggest to create many small Raid Group to increase IOPS, > > but this configuration (N Raid instead of one RAID-DP like NetApp) is > > more complex to manage, or not? > > > > Someone has experiences with ZFS and NFS(v3) in high load environments? > > > > Thanks > > 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. > > Saludos, Juan. zfs set sync=disabled ? -- Regards, Stephan
