Table6.7 priority of target ids, 1 example of megaraid scsi 320-2 id mapping, Table6.8 example of mapping for scsi 320-2 – LSI MegaRAID SCSI 320-2 RAID Controller Series 518 User Manual
Page 91
Installation Steps
6-19
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
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.
shows the relative priority of each Target ID:
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.
6.2.10.1
Example of MegaRAID SCSI 320-2 ID Mapping
provides an example of ID mapping for the SCSI 320-2.
Table 6.7
Priority of Target IDs
Priority
Highest
Lowest
TID
7
6
5
...
2
1
0
15
14
...
9
8
Table 6.8
Example of Mapping for SCSI 320-2
ID
Channel 0
Channel 1
0
A1-1
A1-2
1
A2-1
CD
2
CD
A2-3
3
A2-5
A2-6
4
CD
A3-1
5
A4-1
Tape
6
Optical
A5-1
7
Reserved
Reserved
8
A5-2
A5-3
9
A5-6
A5-7
10
A6-1
A6-2
11
A6-4
A6-5