Andrew, does the CRM/PE allow for resource migration with migrate_to/migrate_from for Master/Slave RAs? This would imply that at some point (during migration) multiple instances would be in the Master role, and master-max would be ignored (or implicitly incremented by 1) but while *not* migrating, master-max would be enforced.
And in addition to that, what are the implications of initiating migration for a set of resources joined via colocation constraints, all the resources of which implement migrate_from and migrate_to and are set to "allow-migrate=1"? To sum up, would the CRM/PE allow something like this: - migration-capable drbd resource - VirtualDomain resource (already migration-capable) - colocation constraint making VirtualDomain dependent on drbd's Master role - "crm resource migrate <VirtualDomain resource>" - now do drbd migrate_to first, then VirtualDomain migrate_to/migrate_from, and *now* drbd migrate_from? I realize this probably sounds like I'm totally off my rocker, but would this be feasible in any way? Cheers, Florian
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