[DRBD-user] DRBD primary/primary for KVM - what is the best option?

Bart Coninckx bart.coninckx at telenet.be
Tue May 11 22:16:31 CEST 2010

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Tuesday 11 May 2010 22:01:59 Florian Haas wrote:
> On 05/11/2010 08:56 PM, Ryan Manikowski wrote:
> >> Heartbeat normally takes care of both things: failing over and starting
> >> all resources at boot. I guess we need a Heartbeat resource agent that
> >> can use ietdadm. I really wonder what the webinar is about.
> >
> > No resource agent needed. Heartbeat automagically sources /etc/init.d
> > for daemon scripts. Just place inline as you would any other resource in
> > haresources and it will apply 'start/stop' according to status.
> 
> Sorry to put it this bluntly, but that's bogus. Firstly, it's not quite
> that simple, specifically for active/active setups. Secondly, no-one
> should be using haresources setup anymore, we have Pacemaker for a reason.
> 
> This might be insightful:
> http://www.linux-ha.org/doc/re-ra-iSCSITarget.html
> http://www.linux-ha.org/doc/re-ra-iSCSILogicalUnit.html
> 
> Cheers,
> Florian
> 

Florian, thx for the links. I suppose in an active/passive setup  the first RA 
can be used to start a target on each individual node and the second RA to 
alternately attribute LUNs to each target?

Cheers,

B.



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