On 12/29/10 01:46, Dejan Muhamedagic wrote: > Hi, > > On Tue, Dec 28, 2010 at 12:04:23PM +0100, Tobias Appel wrote: >> Hi, >> >> I have purchased Dr. Schwartzkopff's latest book (in German) about >> pacemaker. In his chapter about constraints he introduces the feature >> resource_set which sounds pretty neat. It would safe me quite some lines >> of configuration (for example I have like 40 individual resources which >> all require to be started after LVM - so currently I have 40 extra order >> constraints which I could fit into one using resource_set). > > 40 order constraints? A big cluster. > >> Though in his book he writes that this feature is quite new and might >> still be buggy and thus not recommended for productive use - I don't >> know though on which version of pacemaker he makes this assumption. >> >> Currently we use 1.1.2. At least in the GUI I don't see any option to >> use resource_set within another constraint. In the dialog for adding a constraint, for example "Add resource Order", you can click "Add" and select "Resource Set" to use it.
> Will the GUI still work if I >> manually add the required XML code to the cib? > > Yes, the GUI should work. You can also use the crm shell to edit > constraints. It should look sth like this: > > order o inf: lvm ( rsc1 rsc2 ... rscn ) > > providing that rsc1 ... rscn don't depend on each other. > >> And is this feature now safe to use? > > Should be. But the number of resources you want to put into the > set is unusually large. Try this first on a test cluster. It is > also possible to use several constraints: > > order o1 inf: lvm ( rsc1 rsc2 ... rscm ) > order o2 inf: lvm ( rscm+1 rscm+2 ... ) > ... > >> Thanks in advance and happy new year to everyone. > > Happy NY to you too. > > Thanks, > > Dejan > >> Bye, >> Tobi Regards, Yan -- Yan Gao <[email protected]> Software Engineer China Server Team, OPS Engineering, Novell, Inc. _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
