> -----Ursprüngliche Nachricht-----
> Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> ha.org] Im Auftrag von Andreas Kurz
> Gesendet: Mittwoch, 12. März 2008 16:08
> An: General Linux-HA mailing list
> Betreff: Re: [Linux-HA] Master/Slave with 2 DRBD-primitives
>
> On Wed, Mar 12, 2008 at 1:49 PM, Schmidt, Florian
> <[EMAIL PROTECTED]> wrote:
> >
> > > On Wed, Mar 12, 2008 at 1:23 PM, Schmidt, Florian
> > > <[EMAIL PROTECTED]> wrote:
> > > > > > > > On Tue, Mar 11, 2008 at 7:19 PM, Schmidt, Florian
> > > > > > > > <[EMAIL PROTECTED]> wrote:
> > > > > > > > > Hello guys,
> > > > > > > > >
> > > > > > > > > is it able to put 2 primitives into one
> > > > master/slave-resource or do I
> > > > > > > > > need to create 2 master/slave resources each having one
> > > > primitive?
> > > > > > > >
> > > > > > > > You can put your two primitives into a group and create a
> > > > master/slave
> > > > > > > > resource with this group ... or have two master/slave
> > resources
> > > > with
> > > > > > > > colocation constraints ... a matter of taste ;-)
> > > > > > >
> > > > > > > Is this possible? Putting a group into a master-slave
> > resource?
> > > > > > > Well, I will try this...sounds good ;)
> > > > > > >
> > > > > > > Thanks
> > > > > > > Florian
> > > > > >
> > > > > > Just one more question: if one of the both DRBD-primitives in
> > this
> > > > group fails, all
> > > > > other resources "in the chain behind" it are stopped then, aren't
> > > > they?
> > > > >
> > > > > set "ordered=false" for your group and only the implied
> > colocation
> > > > > constraints of your group take effect
> > > >
> > > > Hello again,
> > > >
> > > > I followed your instructions to create a master/slave-resource
> > > > containing one "ordered=false"-group containing 2 DRBD-primitives.
> > > >
> > > > I started Heartbeat and it comes up fine, but none of the
> > DRBD-instances
> > > > gets promoted:
> > >
> > > Hmmm ... interesting, not the expected result. So it seems to be
> > > better to go with two separated master/slave resources. Could you
> > > attach your complete cib with the not-promoting group .... just out of
> > > curiosity ;-)
> >
> > Maybe this is because of the additional layer in the
> > master-slave-resource
> > So he tries to promote the group not the primitives.
> >
> > CIB is attached. ;)
>
> I've currently some time to test ... the status section of your cib
> indicates that the DRBD resources were promoted on "nodekrz". Did you
> verify that all DRBD devices are Secondary on both nodes?
Yes, cat /proc/drbd said that both resources on both nodes were secondary.
> After some cleanups (leftover constraints from previous tests?), ptest
> shows a correct handling of the master-slave group. What's
> interesting: The two DRBD resources only get promoted if a location
> constraint for the master-slave resource is defined. Don't know if
> this is expected or a "feature" ... I attach the cib I've tested ...
In the meanwhile I have changed my configuration so that everything works. For
sure I'll test this later. It would be a better solution than mine now is...
Thanks for your time
Florian
> Regards,
> Andreas
>
>
> >
> >
> >
> > >
> > > Regards,
> > > Andreas
> > >
> > > >
> > > >
> > > > ============
> > > > Last updated: Wed Mar 12 13:20:42 2008
> > > > Current DC: noderz (691dfdac-f5d6-4a04-a845-8706701318b3)
> > > > 2 Nodes configured.
> > > > 1 Resources configured.
> > > > ============
> > > >
> > > > Node: noderz (691dfdac-f5d6-4a04-a845-8706701318b3): online
> > > > Node: nodekrz (44425bd9-2cba-4d6a-ac62-82a8bb81a23d): online
> > > >
> > > > Master/Slave Set: DRBD
> > > > Resource Group: Group_DRBD:0
> > > > DRBD_AFD:0 (heartbeat::ocf:drbd): Started noderz
> > > > DRBD_SAPROUTER:0 (heartbeat::ocf:drbd): Started
> > noderz
> > > > Resource Group: Group_DRBD:1
> > > > DRBD_AFD:1 (heartbeat::ocf:drbd): Started nodekrz
> > > > DRBD_SAPROUTER:1 (heartbeat::ocf:drbd): Started
> > nodekrz
> > > >
> > > > Resources-section of CIB is added. What's wrong?
> > > >
> > > > Regards
> > > > Florian
> > > >
> > > >
> > > >
> > > > > Regards,
> > > > > Andreas
> > > > > >
> > > > > > This again, wouldn't be that great. Maybe collocation
> > constraints
> > > > would still be
> > > > > better.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Florian
> > > > > >
> > > > > > >
> > > > > > > > Regards,
> > > > > > > > Andreas
> > > > > > > >
> > > > > > > > >
> > > > > > > > > The primitives are DRBD-resources, which always need to
> > run
> > > > on the
> > > > > same
> > > > > > > > > machine.
> > > > > > > > >
> > > > > > > > > Regards
> > > > > > > > > Florian
> > > >
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