[Pacemaker] DRBD and pacemaker interaction

[Lars Ellenberg]

On Fri, Mar 25, 2011 at 06:39:10PM +0100, Christoph Bartoschek wrote:
> Hi,
> 
> I´ve already sent this mail to linux-ha but that list seems to be dead:

What makes you think so?
That you did not get a reply within 40 minutes?

You make me feel sorry about having replied there.

Maybe you should consider to sign a contract with
defined SLAs ;-)

> we experiment with DRBD and pacemaker and see several times that the 
> DRBD part is degraded (One node is outdated or diskless or something 
> similar) but crm_mon just reports that the DRBD resource runs as master 
> and slave on the nodes.
> 
> There is no indication that the resource is not in its optimal mode of 
> operation.
> 
> For me it seems as if pacemaker knows only the states: running, stopped, 
> failed.
> 
> I am missing the state: running degraded or suboptimal.
> 
> Is it already there and I have made an configuration error? Or what is 
> the recommended way to check the sanity of the resources controlled by 
> pacemaker?

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com