Filter
Top Products
4–20 Configuring Storagesets
Finding the CCL Location
To see where each CCL is located, use the following commands:
SHOW THIS_CONTROLLER
or
SHOW OTHER_CONTROLLER
Look under host port to find the Command Console LUN location. Because the CCL
is not an actual device or unit, the SHOW UNITS command will display only unit
information and no CCL locations.
Multiple-Port and Multiple-Host Use
The way the host sees the CCL varies, depending whether you are in SCSI-2 or SCSI-
3 mode and whether you’ve enabled transparent or multiple-bus failover modes,
SCSI-2 Mode
If you are in SCSI-2 mode and have enabled the SET FAILOVER command, only one
CCL will be enabled. However, in SCSI-2 mode with SET MULTIBUS_FAILOVER
enabled, all ports will see the CCL and will be able to access it. In addition, the CCL
appears to the host as a direct access device.
SCSI-3 Mode
In SCSI-3 mode, a CCL will appear at LUN 0 of each target ID. If you are in
transparent failover mode, each CCL will be accessible from the port that has the
SCSI target ID enabled. Ports with multiple target IDs enabled will have multiple
CCLs, and they will appear to the host as an array controller.
If you are in multiple-bus failover mode, all ports will see the CCLs and will be able
to access them. As a result, all hosts will have access to each CCL, and they will
appear to the host as array controllers.