On Mon, Mar 18, 2013 at 7:33 AM, Rene Kochen <rene.koc...@emea.schange.com> wrote: > Hi Aaron, > > Thank you for your answer! > > My idea was to do the snapshots in the backup DC only. That way the backup > procedure will not affect the live DC. However I'm afraid that a > point-in-time recovery via the snapshots in the second DC (first restore > backup on backup DC and then repair live DC) will take too long. I expect > the data to grow significantly. > > It makes more sense to use the second cluster as a hot standby (and make > snapshots on both clusters).
Remember, snapshots are *cheap*. There's almost literally zero I/O associated with a snapshot. Backing up all that data off the system is a different story, but at least it's large sequential reads which is pretty well optimized. -- Aaron Turner http://synfin.net/ Twitter: @synfinatic http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & Windows Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. -- Benjamin Franklin "carpe diem quam minimum credula postero"
