[DRBD-user] Upgrade PVE 4.4 to 5.1 DRB9

[Roland Kammerer]

On Mon, Mar 19, 2018 at 01:39:39PM +0400, Shafeek Sumser wrote:
> Hello,
> 
> We have a cluster of 3 servers with Proxmox 4.4 avec DRBD9.
> We have upgraded Proxmox from 4.4 to 5.1 but drbd cluster failed.
> 
> No DRBD resources are to be found.
> 
> Below is the status of DRBD9
> 
> root at srv2:~# /etc/init.d/drbd status
> ● drbd.service - DRBD -- please disable. Unless you are NOT using a cluster
> manager.
>    Loaded: loaded (/lib/systemd/system/drbd.service; disabled; vendor
> preset: enabled)
>    Active: inactive (dead)
> root at srv2:~# /etc/init.d/drbd start
> [....] Starting drbd (via systemctl): drbd.serviceJob for drbd.service
> failed because the control process exited with error code.
> See "systemctl status drbd.service" and "journalctl -xe" for details.
>  failed!
> root at srv2:~# journalctl -xe
> Mar 19 13:17:01 srv2 CRON[6301]: (root) CMD (   cd / && run-parts --report
> /etc/cron.hourly)
> Mar 19 13:17:01 srv2 CRON[6296]: pam_unix(cron:session): session closed for
> user root
> Mar 19 13:17:01 srv2 systemd[1]: Started Proxmox VE replication runner.
> -- Subject: Unit pvesr.service has finished start-up
> -- Defined-By: systemd
> -- Support: https://www.debian.org/support
> -- 
> -- Unit pvesr.service has finished starting up.
> -- 
> -- The start-up result is done.
> Mar 19 13:17:24 srv2 pvestatd[1685]: Use of uninitialized value in split at
> /usr/share/perl5/PVE/Storage/Custom/DRBDPlugin.pm line 217.
> Mar 19 13:17:24 srv2 pvestatd[1685]: Use of uninitialized value $free_space
> in multiplication (*) at /usr/share/perl5/PVE/Storage/Custom/DRBD
> Mar 19 13:17:24 srv2 pvestatd[1685]: Use of uninitialized value
> $total_space in multiplication (*) at
> /usr/share/perl5/PVE/Storage/Custom/DRB
> Mar 19 13:17:24 srv2 pvestatd[1685]: status update time (32.584 seconds)
> Mar 19 13:17:47 srv2 pmxcfs[1604]: [status] notice: received log
> Mar 19 13:17:54 srv2 systemd[1]: Starting DRBD -- please disable. Unless
> you are NOT using a cluster manager....
> -- Subject: Unit drbd.service has begun start-up
> -- Defined-By: systemd
> -- Support: https://www.debian.org/support
> -- 
> -- Unit drbd.service has begun starting up.
> Mar 19 13:17:54 srv2 drbd[6389]: Starting DRBD resources:
> Mar 19 13:17:54 srv2 drbd[6389]: drbd.d/drbdctrl.res:18: Parse error: 'disk
> | device | address | meta-disk | flexible-meta-disk' expected,
> Mar 19 13:17:54 srv2 drbd[6389]:         but got 'node-id'
> Mar 19 13:17:54 srv2 drbd[6389]:  failed!
> Mar 19 13:17:54 srv2 systemd[1]: drbd.service: Main process exited,

Looks like another drbd 8.4 vs 9 case...

Check cat /proc/drbd, probably you fell back to 8.4. That is because
IIRC Proxmox shipped the drbd9 kernel module, but dropped that. A drbd9
dkms is publicly available, you have to install kernel-headers and then
install the dkms.

You can find some infos here:
https://docs.linbit.com/docs/users-guide-9.0/#ch-proxmox

Regards, rck