Dear Sirs, We have recently purchased Redhat Enterprise Linux ES version 3 and Redhat Cluster Suite version 3 to establish a high availability cluster in Active/Passive configuration with shared storage. As per documents available on Redhat's website, it is possible to establish a heartbeat mechanism over Ethernet. However, our system integrator feels that this is not possible with RHCS 3 and that heartbeat mechanism can only be established using a Quorum partition. The SI also believes that quorum based heartbeat is superior to Ethernet based heartbeat mechanism. In this regard, can someone please clarify the following. 1) Whether Quorum partition is a superior mechanism for establishing heartbeat? If so, then in what aspects? (Somehow, this looks strange, in an ethernet based heartbeat only network latencies are involved, which must be negligible with a ethernet crossover cable. Whereas quorum partition involves two latencies in writing/reading the quorum partition and the disk access time itself. Surely, a crossover ethernet based heartbeat must be superior to quorum partition.) 2) Is it not possible to establish heartbeat using an ethernet/serial crossover cable? sivakumar -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
