ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
SCSI Interface
3-25
Mode Sense (1Ah)
The SCSI Mode Sense Command provides a general method for a host
to obtain the current parameter settings of a target device. The host
selects the set parameters to be returned by setting the Page Code field
in the command block. This code selects the page of parameter
information to be returned by the target.
The ACL 4/52 library supports the three medium changer device
parameter pages defined in the SCSI-2 standard and two vendor
unique pages:
•
Element Address Assignment Page
•
Transport Geometry Parameters Page
•
Device Capabilities Page
•
Vendor Unique Page 20h
•
Vendor Unique Page 00h
The host can request all pages with a single command using the
Return All Pages page code as described in the standard.
The format for the Mode Sense Command block is shown in Table 16.
Table 16: Mode Sense
Command
Logical Unit Number
The Logical Unit Number must be set to 0. This field indicates
which logical unit the command should be sent to.
Bit/Byte
7
6
5
4
3
2
1
0
0
Operation Code (1Ah)
1
Logical Unit Number
Reserved
(0)
DBD
Reserved
(00)
2
PC
Page Code
3
Reserved (00h)
4
Allocation Length
5
Reserved (00h)
Содержание ACL 4/52
Страница 1: ...ACL 4 52 Automated Tape Library for DLT Cartridges Software Interface Guide 6211225 03 Version 3 0...
Страница 2: ......
Страница 10: ...x...
Страница 14: ...1 2...
Страница 18: ...1 6...
Страница 36: ...3 2...
Страница 136: ...B 6...
Страница 138: ...C 2...
Страница 148: ...C 12...
Страница 150: ...D 2...