Le 18/06/2018 à 10:22:03+0200, Niels Dettenbach via Info-cyrus a écrit > Am Montag, 18. Juni 2018, 09:46:02 CEST schrieb Albert Shih: > > What do you think ? What's your DRP ? > I shoot snapshots from the underlying FS of the spool partition(s) and the > main DB files (skiplist) - incl. (incremental) filesystem dumps of them. How you do that ? Because at the beginning my plan was to do both (replication and snapshot). The problem is currently I'm encounter big issue with the snapshot. I don't know if this is the right place because I don't know if it's related to Cyrus, so that's why I didn't talk about at the first time. But I got a server (Dell PowerEdge, 192Go, 28 mechanicals disk, 2 ssd, 2 SAS (for the OS)). The system is FreeBSD 11 running on the 2 SAS disk on UFS The cyrus imap run inside a jail on the 2 ssd ( on zfs pool) The mailbox and xapian index are on two zfs dataset on a zpool with 28 mechanicals disk. Everything seem working fine, until I try to send the dataset on other server. I just cannot send a zfs snapshot from this server to another. If the dataset are small that's OK, but with the mailbox (~4To) the zfs command just hang after 10-40 minutes during 1-10 minutes, come back work during 1 or 2 hours and hang again etc. > in a desaster scenario it usually works well to reinstantiate the last > snapshot and start the server(s) with a forced full reconstruct run. But this > only offers "low resolution" recovery (mails / mods since last snapshot are > gone then). > > Beside this we run daily FS backups (incl. cyrus DB dumps) which allows us to How you do that ? Because cyrus got a lot of DB.... > reinstall from zero (i.e. autmated by ansible or similiar) on system and FS Yes we using puppet, reinstalling the system and configuration are easy. The hard part are the data. > level. > > I'm a bit new to the new included backup mechs and repo features in cyrus 3 > and interested in experiences with setups, allowing a efficient "lossless" > recovery too. I'm a bit new with cyrus so... ;-) All I can say is the replication seem to works well. I got master --> first slave (same room) --> second slave (distant datacenter). I'll will try today to see if it's easy or not to restart with a slave by cloning it. Best regards. -- Albert SHIH DIO bâtiment 15 Observatoire de Paris xmpp: jas@xxxxxxxx Heure local/Local time: Mon Jun 18 10:36:19 CEST 2018 ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
