[ClusterLabs] HA problem: No live migration when setting node on standby

[Andrei Borzenkov]

On 13.04.2023 22:24, Andrei Borzenkov wrote:
...

> 
> order drbd_vm_after_drbd_fs Mandatory: ms-drbd_fs:promote drbd_vm:start
> 
> After I added it back I get the same failed "demote" action.
> 
> Transition Summary:
>     * Stop       zfs_drbd_storage:0     (        ha1 )  due to node
> availability
>     * Stop       drbd_fs:0              ( Master ha1 )  due to node
> availability
>     * Migrate    just_vm                ( ha1 -> ha2 )
>     * Move       drbd_vm                ( ha1 -> ha2 )  due to unrunnable
> ms-drbd_fs demote
> 
> I was sure that "start" is default anyway.

Scratch it. The default is the value of "first-action" so with "start" 
it ordered two "promote" actions which does nothing. So we are back at 
square one - if there is ordering constraint against master/slave.