Re: [Pacemaker] Dependency on either of two resources
05.10.2010 12:12, Andrew Beekhof wrote: On Mon, Oct 4, 2010 at 6:31 AM, Vladislav Bogdanov bub...@hoster-ok.com wrote: Hi all, just wondering, is there a way to make resource depend on (be colocated with) either of two other resources? Not yet. Its something we want to support eventually though. That would be a killer feature. Hope you will find time for it until 1.2. So now I probably should exploit monitor op to try to repair failed portals. That is a hack and it doesn't let me see in cib if there are actual problems, but it is better than nothing. Use case is iSCSI initiator connection to iSCSI target with two portals. Idea is to have f.e. device manager multipath resource depend on both iSCSI connection resources, but in a soft way, so fail of any single iSCSI connection will not cause multipath resource to stop, but fail of both connections will cause it. I should be missing something but I cannot find answer is it possible with current pacemaker. Can someone bring some light? Best, Vladislav ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
Re: [Pacemaker] Dependency on either of two resources
Hi, a similar or related use case that we tried to solve without success: - a stretch cluster with two disk boxes - a LUN on each disk box guarded by an individual SFEX - a mirror (raid1 or clvm) that survives an outage of one disk box - the mirror should be started if at least one SFEX can be obtained and the other one could not be obtained on a different node IMHO sdb is not an alternative as this introduces a SPOF. Mit freundlichen Grüßen / Kind regards Holger Teutsch From: Vladislav Bogdanov bub...@hoster-ok.com To: The Pacemaker cluster resource manager pacemaker@oss.clusterlabs.org Date: 04.10.2010 06:33 Subject:[Pacemaker] Dependency on either of two resources Hi all, just wondering, is there a way to make resource depend on (be colocated with) either of two other resources? Use case is iSCSI initiator connection to iSCSI target with two portals. Idea is to have f.e. device manager multipath resource depend on both iSCSI connection resources, but in a soft way, so fail of any single iSCSI connection will not cause multipath resource to stop, but fail of both connections will cause it. I should be missing something but I cannot find answer is it possible with current pacemaker. Can someone bring some light? Best, Vladislav ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
[Pacemaker] Dependency on either of two resources
Hi all, just wondering, is there a way to make resource depend on (be colocated with) either of two other resources? Use case is iSCSI initiator connection to iSCSI target with two portals. Idea is to have f.e. device manager multipath resource depend on both iSCSI connection resources, but in a soft way, so fail of any single iSCSI connection will not cause multipath resource to stop, but fail of both connections will cause it. I should be missing something but I cannot find answer is it possible with current pacemaker. Can someone bring some light? Best, Vladislav ___ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
