On Wed, May 19, 2010 at 07:50:13AM -0700, John Hoogerdijk wrote:
> Think about the potential problems if I don't mirror the log devices
> across the WAN.

If you don't mirror the log devices then your disaster recovery
semantics will be that you'll miss any transactions that hadn't been
committed to disk yet at the time of the disaster.  Which means that the
log devices' effects is purely local: for recovery from local power
failures (not extending to local disasters) and for acceleration.

This may or may not be acceptable to you.  If not, then mirror the log
devices.

Nico
-- 
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Reply via email to