HP Disk System 2300 HP StorageWorks Disk System 2300 User's Guide(This manual - Page 88

Disk Addressing, Disk and BCC SCSI Addresses for Full and Split Bus Modes

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Disk Addressing Each disk in the StorageWorks Disk System 2300 occupies a separate address (SCSI ID) on the SCSI bus. Disk addresses range from 0 to 6 and 8 to 14 in fullbus mode (DIP switch 1 set to "|"). In split bus mode (DIP switch 1 set to "0"), the left BCC (viewing the disk system from the rear) is on the high numbered bank (with disk slots 8, 9, 10, 11,12, 13, and 14) and the right BCC is on the low numbered bank (with disk slots 0, 1, 2, 3,4, 5, and 6) of disk slots. Address 7 is reserved for host bust adapter(s). The BCCs take address 15. Table 10 shows all target SCSI IDs for full bus and split bus modes. Table 10. Disk and BCC SCSI Addresses for Full and Split Bus Modes Physical Disk Slot SCSI ID Full Bus Split Bus (Right BCC) Split Bus (Left BCC) 1 0 0 2 1 1 3 2 2 4 3 3 5 4 4 6 5 5 7 6 6 8 8 8 9 9 9 10 10 10 11 11 11 12 12 12 13 13 13 14 14 14 Right BCC 15 15 Left BCC B See Note 15 88 Configuration

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88
Configuration
Disk Addressing
Each disk in the StorageWorks Disk System 2300 occupies a separate address
(SCSI ID) on the SCSI bus. Disk addresses range from 0 to 6 and 8 to 14 in full-
bus mode (DIP switch 1 set to “|”). In split bus mode (DIP switch 1 set to “0”),
the left BCC (viewing the disk system from the rear) is on the high numbered
bank (with disk slots 8, 9, 10, 11,12, 13, and 14) and the right BCC is on the low
numbered bank (with disk slots 0, 1, 2, 3,4, 5, and 6) of disk slots. Address 7 is
reserved for host bust adapter(s). The BCCs take address 15.
Table 10 shows all target SCSI IDs for full bus and split bus modes.
Table 10.
Disk and BCC SCSI Addresses for Full and Split Bus Modes
Physical
Disk Slot
SCSI ID
Full Bus
Split Bus
(Right BCC)
Split Bus
(Left BCC)
1
0
0
2
1
1
3
2
2
4
3
3
5
4
4
6
5
5
7
6
6
8
8
8
9
9
9
10
10
10
11
11
11
12
12
12
13
13
13
14
14
14
Right BCC
15
15
Left BCC B
See Note
15