User's Guide

Chapter 2 Emulated Medium Changer SCSI Commands
Mode Select (15h)
32 Quantum DX-Series Software Interface Guide
Mode Select (15h) 2
The Mode Select command provides a means for the host to specify
parameters to the DX-Series system. The DX-Series system supports:
• Element Address Assignment Page 1Dh
• Vendor Unique Page 20h
• Vendor Unique Page 00h
Table 25 Mode
Select Command
Bit/Byte 7 6 5 4 3 2 1 0
0
1
2
Reserved (0000h)
3
4
5
• Logical Unit Number
The Logical Unit Number field must be set to 0. This field indicates
the logical unit to which the command is sent.
• SP - Save Page
• When set to 0, the Save Page field performs mode select without
saving
• When set to 1, Save Page performs Mode Select and saves it in
nonvolatile memory
•PF
When set to 1, the Page Format field indicates the Mode Select
Parameters are formatted as specified in the SCSI-2 specification.
• Parameter List Length
Operation Code (15h)
Logical Unit Number PF (1) Reserved (0)
SP
Parameter List Length
Reserved (00h)