LSI MegaRAID SCSI 320-2 RAID Controller Series 518 Hardware Manual page 91

6.2.10.1 Example of MegaRAID SCSI 320-2 ID Mapping
automatically occupies TID 7 on each SCSI channel. Eight-bit SCSI
devices can only use the TIDs from 0 to 6. 16-bit devices can use the
TIDs from 0 to 15. The arbitration priority for a SCSI device depends on
its TID. Table 6.7 shows the relative priority of each Target ID:
Table 6.7 Priority of Target IDs
Priority Highest
TID 7 6
Important: Non-disk devices (CD-ROM or tape drive) should have
unique SCSI IDs regardless of the channel they are
connected to. ID 0 cannot be used for non-disk devices
because they are limited to IDs 1 through 6. There is a limit
of six IDs per controller for non-disk devices.
Table 6.8 provides an example of ID mapping for the SCSI 320-2.
Table 6.8 Example of Mapping for SCSI 320-2
ID Channel 0
0 A1-1
1 A2-1
2 CD
3 A2-5
4 CD
5 A4-1
6 Optical
7 Reserved
8 A5-2
9 A5-6
10 A6-1
11 A6-4
Installation Steps
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
Lowest
5 ... 2 1 0
Channel 1
A1-2
CD
A2-3
A2-6
A3-1
Tape
A5-1
Reserved
A5-3
A5-7
A6-2
A6-5
15 14 ... 9 8
6-19