Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I've spent most of today reading the archives and many articles on DRBD, I have a few questions if I may. I have an existing system running Suse9 pro with RAID1, I've bought an exact same server and would like to set them up running hearbeat and DRBD. 1. I presume I have to setup DRBD first and then Heartbeat. 2. I'm a bit confused, when I think of RAID1 I think of a complete disk being mirrored. Is this not the case with DRBD? From what I have read it seems like it really only mirrors a single partition, is this correct? If so what about the system files, if I make a change to a config file on the primary, this change will not be mirrored to the secondary automatically? 3. The current server has the following partitions: Total disk size sda1 73GB FAT16 62.7MB sda1 L-Swap2 1GB sda2 ReiserFS 67.2GB sd3 Free 7.8MB Am I able reconfigure the system to use DRBD, I'm currently only using about 3GB on sd3 so I could possibly shrink the partition and create a new partition if required. 4. If I can not mirror the complete disk, what do I do with the data that I'd like to mirror that currently exists on sda3. In particular I have a posgresql database, php files that I change from time to time, and any other files that I need to mirror. Do I have to copy these files to the DRBD partition and change all the configs for these systems to point to the new location? 5. Ideally I would have liked a system where all changes including updates to packages, config files, data, etc. get mirrored by DRBD, if this is not possible how do people prevent the secondary getting out of sync with updates. If the primary fails and the secondary takes over it could be out of date. Thanks in advance, Etienne.