Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/25/2010 08:37 PM, Sam Przyswa wrote: > Hi, > > Before to swap my Zimbra and Postfix server on DRBD I have some questions: > > My actual setup run Zimbra (collaborative app) and Postfix in > virtualization on 2 vserver guest and LVM, each virtual machine / is a > logical volume. I plan to run the LVM over DRBD. > > 1) - First of all is the LVM on DRBD is really fiable in production mode ? Using an LVM volume for DRBD backing store, and using a DRBD block device as an LVM physical volume are both supported. > 2) - In case of DRBD crash on primary is it tools to recovery the > filesystem and what about the secondary ? Assuming DRBD is in Primary/Secondary UpToDate/UpToDate, then an fsck on the primary node is all you need. Remember, DRBD is replicating changes to blocks. If that happens to correspond to writes by a filesystem, then great. > 3) - To migrate to the new setup I have to configure the secondary > machine with only one machine as primary to create the logical volume > and install the vservers. Is it a problem to start DRBD with only one > machine before install DRBD and LVM on second machine and sync after ? Single-node DRBD is fine. When you do eventually connect the second node, a full sync will occur so you may wish to do this during scheduled down-time or overnight. It's best to have drbd.conf configured for both nodes though, just don't start DRDB on the second node until you are ready. Regards, Mark. - -- Mark Watts BSc RHCE Senior Systems Engineer, IPR Secure Managed Hosting www.QinetiQ.com QinetiQ - Delivering customer-focused solutions GPG Key: http://www.linux-corner.info/mwatts.gpg -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAkzGm8sACgkQBn4EFUVUIO3fCwCgv2GjJeSxpElRXVlCampls17k WT0AnAqyvtEPE2v2C+YaQ/KQVLRbAwr8 =aWip -----END PGP SIGNATURE-----