Control path failover is available as a feature of the Storage Networking (SNW) license. The SNW license must be sufficient to cover both the control path and failover tape drives in order to enable a tape drive for failover. For more information on licensing, see Applying a License Key.
If an HP LTO-5 Fibre Channel tape drive is the control path for a partition, you can select another HP LTO-5 Fibre Channel tape drive in that partition as the control path failover. This means that if the control path tape drive fails, the failover tape drive becomes the control path for the partition. The failed-over tape drive remains the control path for the partition until it fails or the library is rebooted. When either of these events occurs, the library starts over and attempts to use the original control path tape drive as the control path, and the original failover tape drive for failover.
Details about control path failover include:
See also: