Linstor solution with Controller HA

HI, I am planning to implement the linstor under cloudstack. Have installed a test platform, I didnt have any issue with single controller and 3 node cluster, I restarted several number of times and linstor cluster worked beautifully…Recently I implement controller HA " ref:https://linbit.com/drbd-user-guide/linstor-guide-1_0-en/#s-linstor_ha", was working fine but the cluster had a issue after the servers was restarted, I could not fix the issue…discarded everything and reinstalled from start and all working fine. Again I am seeing similar issue after a server restart, upon further check found that the controller is not starting in either of the node and also found that the device drbd1001 were the linstor db resides not mounting…below is the log…Any help is appreciable…Thanks…

░░ A start job for unit drbd-reactor.service has begun execution.
░░
░░ The job identifier is 403.

Jan 30 17:53:31 host1 kernel: drbd linstor_db: Starting worker thread (node-id 0)
Jan 30 17:53:31 host1 kernel: drbd: registered transport class ‘tcp’ (version:9.2.12)
Jan 30 17:53:31 host1 systemd-udevd[954]: drbd1001: Process ‘/usr/bin/unshare -m /usr/bin/snap auto-import --mount=/dev/drbd1001’ failed with exit code 1.
Jan 30 17:53:31 host1 kernel: drbd linstor_db host2: Starting sender thread (peer-node-id 2)
Jan 30 17:53:31 host1 kernel: drbd linstor_db host3: Starting sender thread (peer-node-id 1)
Jan 30 17:53:31 host1 systemd[1]: Finished ensure all DRBD resources shut down gracefully at system shut down.
░░ Subject: A start job for unit drbd-graceful-shutdown.service has finished successfully

Looks like you’re going to have to keep the snap auto-import from happening one way or another. First off, you don’t have /var/lib/linstor in fstab, correct? Assuming that’s right, you may have to delete /lib/udev/rules.d/66-snapd-autoimport.rules to keep that from happening anyway.