A–2
SCSI IDs
Table A–1
SCSI IDs for InfoServer 100 systems
SCSI-A Internal Bus
SCSI-B External Bus
7 Reserved.
7 RRD40 expansion box.
6 SCSI-A adapter.
6 SCSI-B adapter.
5 Reserved.
5 Internal RRD40 expansion box.
4 Reserved.
4 RRD40 expansion box.
3 Reserved.
3 RRD40 expansion box.
2 RRD40 drive.
2 RRD40 expansion box.
1 RZ23 drive.
1 RRD40 expansion box.
0 Reserved.
0 RRD40 expansion box.
Each device has a set of switches or jumpers that can be set for a specific
ID. The optional hard disk drives and additional RRD40 compact disc
drives are mounted in expansion boxes that have external switches.
The built-in RZ23 hard disk drive and the RRD40 compact disc drive(s)
have internal switches or jumpers. If you need to change their default
settings, the setting must be reset by your Digital service representative
Setting the SCSI ID
Enter the TEST 50 command at the console prompt
(>>>)
, then press
Return
. The test displays your system configuration on the screen.
FFFFFF05 identifies an open ID. See Table 4–1 for a complete list of the
device status codes and their meaning. In the following example, the
system contains a controller, one RZ23 hard disk, two internal RRD40
compact disc drives, and two RRD40 compact disc drive expansion boxes
on the external SCSI-B bus. There are five open IDs. Of these five, ID 7
is reserved for a device requiring the highest priority on the SCSI bus.
SCSI-B
1C1C.0001
V1.3
FFFFFF05 FFFFFF05 FFFFFF05 05000001 05000001 FFFFFF05 FFFFFF03 FFFFFF05
1
2
3
4
5
6
7
8
1
SCSI ID 0 — Open.
2
SCSI ID 1 — Open.
3
SCSI ID 2 — Open.
