Quote:
Originally Posted by
DukeNuke2
yes, you can do that. with the new version of cluster 3.2 you can also cluster linux zones
also you don't have to cluster the app... you can cluster the whole zone! but the best practice depends on what exactly you want to do!
hth,
DN2
one of the issues that we're trying to address with clustering the zone vs clustering the app has to do with patching. with app level clustering as it is now, you can patch the OS on the offline node and then fail the service groups over after your are complete. if there are any issues you can go back to the previous system and recover the offline node or if not you can proceed with patching the other system that is now the offline node.
with zones, at some point you need to patch the zone itself since even with a sparse root you have files that need to be updated. during that time, you either just have the app down or hope that nothing happens while you patch.
i'm looking for maximum uptime including system maintenance (and management likes the option for application isolation).