Selecting Drive Id Numbers In The Scsi Box; Connecting Scsi Cables; Connecting Dsbe/S Or Dwis Cables - Sun Microsystems SPARCcenter 2000 Manual

D.9 Selecting Drive ID Numbers in the SCSI Box
D.10 Connecting SCSI Cables
D.11 Connecting DSBE/S or DWIS Cables
The SunCD ID number is 6. The first 150 Mbyte
1
there are more -inch tape drives, the ID numbers must be higher than any 8
/
4
mm tape drive. That is, the SunCD has a higher ID number than
drives, which have higher ID numbers than 8 mm tape drives.
1
In addition, if a -inch front load tape drive is used, the drive ID should be the
/
2
highest in the string (ID 6).
The example in Table D-4 shows how to number five drives in a SCSI tray.
Table D-4 Example of ID Numbering in a SCSI Tray
Device
SunCD
1
/ -inch tape drive
4
8 mm tape drive
8 mm tape drive
8 mm tape drive
The SCSI tray I/O harness terminates at the card cage bottom, near the cabinet
rear. One harness connector must connect to the FSBE/S card in SBus slot 3 of
the master system. Install a SCSI terminator on the second harness connector.
Disk tray 1 in the main cabinet should be connected to the DSBE/S or DWIS
card in SBus slot 0 on the system master board. Disk tray 1 usually contains the
root disk (although this location is not a physical requirement.) Disk trays 2
and 3 should be connected to the next two lowest DSBE/S or DWIS/S cards.
Disk trays in the expansion cabinets should be connected to higher-numbered
DWIS/S or DSBE/S cards in the system cabinet card cage.
General Rules for System Configuration
1
-inch tape drive ID is 5. If
/
4
ID
6
5
4
1
0
D
1
-inch tape
/
4
D-11