Jun 20, 2023 · I had to upgrade a cluster from Ubuntu 16.04. It did work fine on 18.04 and 20.04 but now on 22.04 it does not failover the DRBD-device. Putting the resource into maintenance mode and …

Aug 31, 2023 · I want to configure the DRBD in such a way that it will always resolve any split brain and always have at least one node which is primary and able to serve in any case as long as not both …

Jul 19, 2017 · What does systemctl status drbd report? Does journalctl -u drbd report any clues? What about cat /proc/drbd? I imagine the logs should provide some clue as to why it didn't start properly. …

Yes, DRBD is the only replicated block device out there that can handle concurrent writes. If you plan to put a filesystem on top, it obviously needs to handle multiple writers as well, like GFS (2) and OCFS …

Dec 10, 2018 · DRBD simply doesn't start but manually doing /etc/init.d/drdb start works fine on both servers. Also I'm unsure if I can just add the DRBD volumes to fstab because surely it won't work if …

I've used DRBD 8.3.7 on a 2.7TB partition on a pair of machines running Ubuntu 10.04.4 LTS since 2010, connected with cross-over cables, without major problems with split-brain.

Jul 5, 2016 · I can't even start the drbd service as the other "node" doesn't even exist yet... I'm starting up from a previous drbd configuration that worked fine... with two available nodes.

Mar 12, 2023 · Dual primary is limited to only two nodes. See this warning in the DRBD user's guide. In DRBD 9.0.x Dual-Primary mode is limited to exactly 2 Primaries for the use in live migration. Quorum …

Jul 20, 2017 · Touching DRBD's backing disks can introduce inconsistencies that DRBD will be unaware of (until you run a verify or otherwise overwrite the block). Keep reading LINBIT's documentation.

Apr 2, 2019 · You have created the meta-data for the device, but you then must bring the DRBD resource/device "up". You can do this with either the command drbdadm up r0, or via the systemd …