comp., MS |
failover (In a failover cluster or server cluster, the process of taking a clustered service or application offline on one node and bringing it back online on another node); switchover (An administrator-initiated action in which one or more passive copies of the mailbox database are being activated and designated as the active copy. An administrator can perform a database switchover, which is the activation of a single mailbox database copy, or an administrator can perform a server switchover, which is the activation of multiple mailbox database copies) |