Hi there, Is it possible to have a quorum disk, applicable only to 2 nodes out of a 4 node cluster? (i.e. with the other 2 nodes not connected to the shared quorum disk storage, or not affected by failover or service operation on the 2 nodes that are sharing a disk?) I have encountered the following scenario with a 4-node cluster: (using RHEL 4.8) ============= Nodes 1 & 2: Acting as database nodes, sharing a database service between them (there is a shared disk with an ext3 partition that is only mounted on one node at a time) Node 3: Standalone network service, with an IP address. No shared storage. Network service uses the database on nodes 1 & 2. Node 4: Standalone network service, with an IP address. No shared storage. Network service uses the database on nodes 1 & 2. ============= Failover domains are configured appropriately (one for Nodes 1 & 2, one for Node 3, one for Node 4). The owner of the cluster would like to introduce a shared quorum disk to the two DB nodes, to ensure that the DB service basically fails over between the DB nodes, in the case where shared disk access is lost (i.e. card or cable failure) on the active DB node. This architecture should really be two clusters, right? One separate cluster for DB, and another cluster (even if) for the network apps? I gather it has been configured this way from a desire to logically keep all of these services together in the one "system". Apologies if a similar question has been asked in the past, any inputs, thoughts, or pointers welcome. Karl -- Karl Podesta -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
