Sun Microsystems SPARCstation 4, Service Manual

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C-1
A P P E N D I X
C
SCSI Targeting
This appendix describes the SCSI targeting for the internal SCSI devices in the
SPARCstation 4 system. It also describes the SCSI targeting conventions for external
SCSI peripherals that you can add to the system. For complete SCSI target
information about SCSI peripherals, see the installation manual that came with the
SCSI peripheral.
Note –
Assign each SCSI device on the SCSI chain a different SCSI target.
The internal SCSI disk drive present in a SPARCstation 4 system is automatically
assigned a SCSI target (see
TABLE C-1
and
TABLE C-2
); this target is assigned only if
the device is present.
Note –
On the SPARCstation 4 system, SCSI termination takes place on the system
board when the internal disk is present.
When assigning SCSI targets to external devices, make sure that none of the external
targets conflict with the target automatically assigned to the internal disk drive.
Note –
SCSI target 7 is reserved for the SCSI processor of the computer system or
the SCSI host adapter card.
TABLE C-1
SCSI Targeting—Solaris 1.x (SunOS 4.x) Operating Systems
SCSI Device SCSI Target
On-board disk, (SCSI target automatically assigned, if present) 3*
Internal CD-ROM drive (SCSI target factory-configured) 6