Specifications

6–24 Configuring Storagesets
CAUTION: Selecting SCSI-3 mode enables access to the CCL by all
hosts. If the hosts access the CCL simultaneously, unpredictable conse-
quences can occur. In cases where the CCL can be accessed through
multiple paths and LUNs, system administrators of each host must not
attempt to access the CCL simultaneously.
Adding Storage Units Using the CCL
To start configuring storage units, you must first assign unit offsets. See “Assigning
Unit Offsets,” page 3–13.
IMPORTANT: Unit 0 is the CCL location. Any hosts connected to host port 2 will
not see the CCL.
SCSI-2 Mode
As you add storage units and assign unit offsets over the CCL or above its location,
the CCL immediately and automatically moves into the next available free space,
which would be the lowest available LUN.
NOTE: If you delete a unit at a setting below the CCL setting, the CCL does not
automatically move. Instead, it only moves to the lowest deleted unit’s setting
when you reboot the controller.
SCSI-3 Mode
The CCL will appear at the default unit offset of each port. Because the default unit
offset is 0 for Port 1 and 100 for Port 2, the CCL will be at LUN 0 on Port 1 and LUN
100 on Port 2.
NOTE: LUN 100 on Port 2 appears as LUN 0 to its hosts.