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From Aaron Turner <synfina...@gmail.com>
Subject Re: Backup solution
Date Mon, 18 Mar 2013 16:37:43 GMT
On Mon, Mar 18, 2013 at 7:33 AM, Rene Kochen
<rene.kochen@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"

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