hi once again! thanks for the answerers, but it seems that my question was not clear enough... or noone uses metasets in a sun-cluster, but i don't think so ;) I am not talking about the cluster-quorum devices, indeed you will need 2 disk quorum votes within a three node cluster to get a majority... What I was talking about, are disk-suite, LVM / SVM metasets. If you don't use VxVM or ZFS, you can use the metaset feature which comes from the Solaris Volume Manager.. you can build meta-devices for shared-disks inside a metaset; if you do so in a two node cluster, you will have to define mediators for the metaset. In a mediator configuration, two hosts are physically connected to two strings of drives. This configuration can survive the failure of a single host or a single string of drives. A mediator host running the rpc.metamedd daemon keeps track of replica updates. And you get a mediator quorum... so, what comes out reading the documentation is, that you will need mediators only with Solaris Volume Manager disk sets that are configured with exactly two disk strings and two cluster nodes. more information: http://docs.sun.com/app/docs/doc/819-2970/6n57ljhmv?a=view tanks once again, best regards, - martin [orig] hi! as far as i understood the mediators in metasets, you would only need them in a two-node environment... i added a third node to a two node cluster, he could join the exiting metasets but not the mediator list, so am i right, in a three node configuration you can delete all mediators from the set? the replica-quorum is only used with two nodes so you can survive the failure of a single node, but what would happen if two nodes dies, can the third one still access the set? [[Env: 3x 4900, Sol10_u3, SC_3.1-u4, SAP/Oracle]] thanks for your time! regards - martin [/orig] _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Fri Nov 16 13:09:44 2007
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