I am setting up a clustered Exchange 2003 environment. I will have two active servers and two passive. All three will be connected to a SAN. If an information stores goes down on an active server, or there's another problem, will the passive server have the same problem? The active and passive are set to update each other all the time, and if the active server doesn't respond with the passive after one minute, the passive server then becomes active.
If you lose an active node for whatever reason (i.e., services hung, other failure) then the cluster will fail over to the passive node. The passive node should not have the same issues. Since the databases are on a shared location on the SAN, if you lose a database due to corruption, you will need to restore from backup.
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