Compaq HSZ80 manual 96CLI Commands, NOPORT1ID, NOPORT2ID, Mirroredcache

5–96CLI Commands

PORT_1_ID=(n1,n2,n3...)

NOPORT_1_ID

PORT_2_ID=(n1,n2,n3...)

NOPORT_2_ID

Assigns one to fifteen SCSI target ID numbers (0 through 15) to either port 1 or to port 2. A total of 15 target ID numbers can be assigned to both ports. For example, port 1 has eight target ID numbers and port 2 has seven target ID numbers for a total of 15. Another example, port 1 has 15 target ID numbers and port 2 has none. Host on port 1 can only see targets assigned to port 1 and hosts on port 2 can only see targets assigned to port 2. If two or more target ID numbers are entered, the numbers must be enclosed in parentheses and separated with commas. When changed, you must restart both controllers in order for the new setting to take effect.

A controller can present up to 32 units to the host on each target ID number. Unit numbers identify both the target ID number and the LUN. However, access to LUNs 8 through 31 requires support by both the host adapter and operating system. For example, D203 indicates a disk is addressed through target 2, LUN 3. D5 is target 0, LUN 5.

If two controllers are in a dual-redundant configuration, both controllers support the same target ID numbers. When the ID numbers are changed on one controller, the other controller is automatically updated.

NOTE: Use the PORT_1_PREFERRED_ID (or PORT_2) switch along with the PORT_1_ID (or PORT_2) switch to specify which targets are assigned to each of your controllers on port 1 (or 2). If you do not specify the preference of your targets as you add them, the controller automatically prefers all of the targets to the “other controller.”

MIRRORED_CACHE

NOMIRRORED_CACHE (Default)

Enables the mirrored-write-back-data cache feature on dual-redundant controllers. When changed, both controllers restart for the new switch setting to take effect.