Re: backup rsync
Good morning, We are using Cyrus replication for some years now. It’s just fine. You can play too with expunge_delayed for avoid removing mail immediately. Regards, El 05/09/2014, a las 17:25, Marcus Schopen li...@localguru.de escribió: Am Samstag, den 30.08.2014, 17:10 +0200 schrieb Simon Matter: Am Freitag, den 29.08.2014, 07:56 -0700 schrieb David R Bosso: --On August 29, 2014 at 4:27:57 PM +0200 Marcus Schopen li...@localguru.de wrote: Hi, I'm planing to use lvm snaps and rsync for a daily disaster recovery backup on my master cyrus (2.4.12 Ubuntu 12.04 LTS): Have you tested lvm snaps for this purpose yet? When I tried to use lvm snapshots in this way a few years ago, it absolutely killed performance on the volume with the active snapshots. Hopefully things have improved, but I wouldn't bet on it. Yes, I've tested it and don't see any performance problems while the snaphot is active. My problem is how to backup about 140 GB mailspool in an acceptable time slot. What tools are recommended? If using rsync what options are best practice? I suggest -aH to preserve single instance storage in the backup. Just bought some good wine for my weekend project: what about rsnapshot combined with lvm snapshots (in the pre/postexec scripts of rsnapshot)? rsnapshot works with rsync and hardlinks. Rotation and some other nice features come out of the box. Any experiences with cyrus and this tool? Ciao! 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 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
Re: backup rsync
In fact really…. I should say is “the way” of having a proper HA. Best regards, El 06/09/2014, a las 13:52, Egoitz Aurrekoetxea ego...@ramattack.net escribió: Good morning, We are using Cyrus replication for some years now. It’s just fine. You can play too with expunge_delayed for avoid removing mail immediately. Regards, El 05/09/2014, a las 17:25, Marcus Schopen li...@localguru.de escribió: Am Samstag, den 30.08.2014, 17:10 +0200 schrieb Simon Matter: Am Freitag, den 29.08.2014, 07:56 -0700 schrieb David R Bosso: --On August 29, 2014 at 4:27:57 PM +0200 Marcus Schopen li...@localguru.de wrote: Hi, I'm planing to use lvm snaps and rsync for a daily disaster recovery backup on my master cyrus (2.4.12 Ubuntu 12.04 LTS): Have you tested lvm snaps for this purpose yet? When I tried to use lvm snapshots in this way a few years ago, it absolutely killed performance on the volume with the active snapshots. Hopefully things have improved, but I wouldn't bet on it. Yes, I've tested it and don't see any performance problems while the snaphot is active. My problem is how to backup about 140 GB mailspool in an acceptable time slot. What tools are recommended? If using rsync what options are best practice? I suggest -aH to preserve single instance storage in the backup. Just bought some good wine for my weekend project: what about rsnapshot combined with lvm snapshots (in the pre/postexec scripts of rsnapshot)? rsnapshot works with rsync and hardlinks. Rotation and some other nice features come out of the box. Any experiences with cyrus and this tool? Ciao! 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 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
Re: backup rsync
That's what we do :) Bron. On Sat, Sep 6, 2014, at 09:52 PM, Egoitz Aurrekoetxea wrote: In fact really…. I should say is “the way” of having a proper HA. Best regards, El 06/09/2014, a las 13:52, Egoitz Aurrekoetxea [1]ego...@ramattack.net escribió: Good morning, We are using Cyrus replication for some years now. It’s just fine. You can play too with expunge_delayed for avoid removing mail immediately. Regards, El 05/09/2014, a las 17:25, Marcus Schopen [2]li...@localguru.de escribió: Am Samstag, den 30.08.2014, 17:10 +0200 schrieb Simon Matter: Am Freitag, den 29.08.2014, 07:56 -0700 schrieb David R Bosso: --On August 29, 2014 at 4:27:57 PM +0200 Marcus Schopen [3]li...@localguru.de wrote: Hi, I'm planing to use lvm snaps and rsync for a daily disaster recovery backup on my master cyrus (2.4.12 Ubuntu 12.04 LTS): Have you tested lvm snaps for this purpose yet? When I tried to use lvm snapshots in this way a few years ago, it absolutely killed performance on the volume with the active snapshots. Hopefully things have improved, but I wouldn't bet on it. Yes, I've tested it and don't see any performance problems while the snaphot is active. My problem is how to backup about 140 GB mailspool in an acceptable time slot. What tools are recommended? If using rsync what options are best practice? I suggest -aH to preserve single instance storage in the backup. Just bought some good wine for my weekend project: what about rsnapshot combined with lvm snapshots (in the pre/postexec scripts of rsnapshot)? rsnapshot works with rsync and hardlinks. Rotation and some other nice features come out of the box. Any experiences with cyrus and this tool? Ciao! Cyrus Home Page:[4]http://www.cyrusimap.org/ List Archives/Info:[5]http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: [6]https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus Cyrus Home Page: [7]http://www.cyrusimap.org/ List Archives/Info: [8]http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: [9]https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus -- Bron Gondwana br...@fastmail.fm References 1. mailto:ego...@ramattack.net 2. mailto:li...@localguru.de 3. mailto:li...@localguru.de 4. http://www.cyrusimap.org/ 5. http://lists.andrew.cmu.edu/pipermail/info-cyrus/ 6. https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus 7. http://www.cyrusimap.org/ 8. http://lists.andrew.cmu.edu/pipermail/info-cyrus/ 9. https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus 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
Re: backup rsync
Hi Bron, Am Samstag, den 06.09.2014, 22:17 +1000 schrieb Bron Gondwana: That's what we do :) Thanks for your feedbeek. What's your workaround for not stopping cyrus before taking a lvm snapshot and run rsnapshot? Ciao Marcus 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
Re: backup rsync
No, no - we do replication. Replication rocks. You could easily stop the replica and take a snapshot of that, but our real backup solution is much more evil. I've posted it to this list before, but it's basically a perl daemon which knows far too much about how Cyrus locks its data files. It actually reads and parses cyrus.index files to work out what it needs to do. Bron. On Sun, Sep 7, 2014, at 04:50 AM, Marcus Schopen wrote: Hi Bron, Am Samstag, den 06.09.2014, 22:17 +1000 schrieb Bron Gondwana: That's what we do :) Thanks for your feedbeek. What's your workaround for not stopping cyrus before taking a lvm snapshot and run rsnapshot? Ciao Marcus -- Bron Gondwana br...@fastmail.fm 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
