I'm just curious how other larger sites are handling their Zimbra backups.
We have 5 mailbox servers, each with 30-40GB of /opt/zimbra/store data and another 500-600GB of /opt/zimbra/hsm data. Our /opt/zimbra/backup volumes are 1TB.
We currently run our backups with --noZip because it improves the speed of the backup over running it zipped. We also have auto-grouped turned on and set to 7 so if I understand correctly every account gets a full at least once every 7 days....and this spreads our fulls out over multiple days. I don't know if auto-grouped is working though as the zmbackupquery shows me this...
18th full: 14 hours
17th incr: 45 mins
16th incr: 45 mins
15th incr: 45 mins
14th incr: 45 mins
13th incr: 45 mins
12th incr: 70 mins
11th full: 13.5 hours
I would think if auto-grouped was working the backup length would be nearly the same every day.
The other problem we're having is storage. We can't keep more than maybe 20 days of backups online on a couple of our mailbox servers because we run out of space. We do have more space we can give to these backup volumes, but I'm wondering if we should be getting more efficient use out of what we already have.
I suppose we could start zipping backups again but then the backup jobs take even longer to complete, at least from my experience. We could auto-group to ease the impact of any single full backup on a given day but it doesn't seem as if my auto-grouped settings are working.
Anyway....just trying to see what others are doing and see what the "best practices" are for sites with LOTS of mail data where fulls take a LONG time to complete.