Dell Emulex Family of Adapters - Manual (Page 135)

OneCommand™ Manager Application P010066-01A Rev. A
8. Managing Adapters and Ports
FC/FCoE
135
and SCSI ID can change when the system is rebooted. With persistent binding applied
to one of these targets, the WWPN, SCSI Bus and SCSI ID remain the same when the
system is rebooted. (Not available in read-only mode.)
The driver refers to the binding information at during system boot. When you create a
persistent binding, the OneCommand Manager application tries to make that binding
dynamic. However, the binding must meet all of the following criteria to be dynamic:

The SCSI ID (target/bus combination) specified in the binding request must not
be mapped to another target. For example, the SCSI ID must not already appear
in the 'Current Mappings' table under 'SCSI ID'. If the SCSI ID is already in use,
then the binding cannot be made dynamic, and a reboot is required.

The target (WWPN, WWNN or DID) specified in the binding request must not
be mapped to a SCSI ID. If the desired target is already mapped, then a reboot is
required.

The bind type (WWPN, WWNN or DID) specified in the binding request must
match the currently active bind type shown in the Current Settings area of the
Target Mapping tab. If they do not match, then the binding cannot be made
active.
Changing Automapping Settings
To change automapping settings:
1. Select Host or Fabric view.
2. In the discovery-tree, select the adapter port you want to set up with persistent
binding.