HP Netserver L Server series - Manual (Page 88)

Chapter 4 Configuration
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NOTE For a Simplex controller configuration it is important to
duplicate the entries on Controller 0/Port 0 and
Controller 0/Port 1. See Figure 4-45.
For a Dual Active controller configuration, the load should be
balanced across the two controllers. In the event of a failure to
either controller, the surviving controller will activate its
failover port and transparently take over the workload of the
failed controller. See Figure 4-46.
1. Ensure you have configured the desired number of logical drives on the
RAID Controller.
2. Click the LUN Mapping tab in Manual Configuration. See Figure 4-45.
◊ The Controller-Port columns are shown or not shown depending on the
current controller configuration of host ports and duplex controllers.
◊ By default these logical drives are made available to all existing host
ports in the configuration. LUNs are assigned automatically in
sequential order for each port.
WARNING To prevent data corruption and/or data loss, assign each
logical drive to a specific, individual port (not to all ports).
When logical drives are available to ALL host ports, Windows
NT Server will assign multiple volumes to the same physical
media.
3. For each logical drive, select a LUN in the drop-down list box, which
corresponds to the desired mapping.
Users with Administrative access are free to alter the default settings.
4. If you want to cancel only the LUN Mapping changes, use the Restore
button.