Hot backups
Henrique de Moraes Holschuh
hmh at debian.org
Fri Nov 14 14:59:19 EST 2003
On Fri, 14 Nov 2003, James Miller wrote:
> Rob, I'm still abit confused about what's needed to get cyrus (including
> index files) into a consistent state -- ready for a backup/snapshot.. etc.
> etc.
Right now? Stop it, snapshot the volume, start it again. It should take a
few seconds, which is an acceptable downtime at, say, 04:00 local time... at
least for most people.
Then you can do whatever you need to the snapshot volume (compress, dump to
tape, whatever), and release the snapshot.
Anything else will not be 100% consistent. But, if you can live with
seen-state loss and the need to run reconstruct on recovered mailboxes, you
don't really need 100% consistency.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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