A guiding principle for cluser suite is that an ha service (resource group) should be able to fail over w/o impacting any other RG. To accomplish what you want, simply put your init scripts in a single RG. For a complex scenario, you will probably need to write a custom script that combines the individual init scripts. And: consider whether your goal is really the best approach. It may be, but then again it may have the ultimate impact of reducing availability. This reduction is a byproduct of failure outcomes. Hth, -paul Sent via BlackBerry by AT&T -----Original Message----- From: Gianluca Cecchi <gianluca.cecchi@xxxxxxxxx> Date: Thu, 5 Feb 2009 10:30:07 To: <linux-cluster@xxxxxxxxxx> Subject: interdependency between different services possible? Can I have parent-child relations between different services of a cluster? Can I have placement policies relations between different services? It seems this is not covered inside the manuals, at least for rh el 5.2 An example could be if I have: service 1 with several fs resources on it and a virtual ip service 2 with an application insisting on the file systems and ip defined in service1, so that I want service 2 to start on the same node of service 1 or not at all I would like to keep the app resource of service 2 separate form the ones in service 1, for example to be able to stop the app but keeping the shared file systems and ip still accessible (if the app is a db I could do a backup of its files disabling service 2, but it applies also for maintenance operations) In this way I could run a clusvcadm -d service2 and make what I want on the still mounted filesystems provided by service1, accessing them with the cluster ip from a client Any hints on making this or something similar? Thanks, Gianluca -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
