M2488 PRODUCT GUIDE TAPE UNIT SCSI COMMANDS
April 1997 CG00000-011503 REV. A 4-1
CHAPTER 4TAPE UNIT SCSI COMMANDS

4-1 INTRODUCTI ON

This chapter describes the commands and messages for the M2488. The following information is
located in this chapter:
4-2 LOGICAL UNITS AND SCSI IDS
4-3 M2488 TAPE SCSI COMMANDS
4-4 COMMAND DISCONNECTION
4-5 SCSI RESET

4-2 LOGICAL UN ITS AND SCSI IDS

4-2.1 Target ID
The default target ID for the M2488 tape drive is 0h. The target ID can be configured to any value, 0
through 7, not used by another device connected to the SCSI bus. The target ID is configured via the
operator panel as described in Chapter 6.
4-2.2 Initiator ID
When installed with a WIDE IPM (Interface Personality Module) having 68 pins, the tape unit will
recognize initiators with ID’s 0 through 15.
When installed with a 50 pin NARROW IPM, the tape unit will recognize initiators with ID’s 0
through 7.
4-2.3 Tape LUN 0
The default Logical Unit Number (LUN) assigned to the tape drive is 0.
4-2.4 Media Changer LUN 4
The default Logical Unit Number (LUN) assigned to an attached media changer (MC) is 4. The
attached medium changer may be either and ACL or FACL.
4-2.5 LUN
The LUN for the tape drive and attached medium changer may be configured to any value from 0
through 7. The tape drive LUN value must not be the same as the MC LUN value. The LUN value is
configured via the operator panel as described in Chapter 6.