[OpenIndiana-discuss] OpenIndiana/ZFS mail server HA config

[Joshua M. Clulow]

On 6 December 2011 09:05, Hans J. Albertsson
<hans.j.albertsson at branneriet.se> wrote:
> I noticed AVS: This is too recent for me to have had any chance of learning
> about it while at Sun.
> Could this be used for remote mirroring between two standard Supermicro
> X8STi-LN4 based microserver
> using two ordinary SATA disks each?

Just spitballing, but perhaps you could do something with ZFS
send/receive.  You could take frequent incremental snapshots and send
them to the remote node.  If you did this, say, every ~30-60 seconds
during periods of high churn then perhaps all of the requisite blocks
would still be in the ARC and you could send them without reading back
from disk.

We used to do this every 15 minutes on a pair of thumpers at the Uni I
worked at.  Has anybody done this with a shorter period?  You may get
more traction with the question on a ZFS mailing list.

-- 
Joshua M. Clulow
UNIX Admin/Developer
http://blog.sysmgr.org