Mode Sense (1A) - Fujitsu MAX3073NC - SCSI,80, Dell DC961,Hard Drive Scsi Logical Interface Specifications

Command Specifications
3.1.7

MODE SENSE (1A)

This command reports the values for each type of parameter related to the disk drive's physical attributes,
data format, timing for SCSI bus disconnect and reconnect processing, error recovery procedures, etc., as
well as the attributes of those parameters, to the INIT.
The data (MODE SENSE data) transferred to the INIT from the IDD by this command are configured
from a "Header," "Block Descriptor" and one or more "Page descriptors" which describe each type of
parameter, each of which will be described later in this item.
When "1" is specified in the "DBD (disable block descriptors)" bit of CDB byte 1, it indicates that a
"Block descriptor" is not included in the MODE SENSE data transferred to the INIT by this command
and the IDD transfers MODE SENSE data composed from the "Header" and the specified "Page
descriptor" only to INIT. When "0" is specified in this bit, the IDD transfers MODE SENSE DATA
composed of the "Header, " a single "Block descriptor" and the specified "Page descriptor" to the INIT.
The "Page code" field in CDB byte 2 specifies the page code of the "Page descriptor" transferred to the
INIT by this command. The types of "Page descriptor" supported by the IDD and their page codes and
lengths are as shown below.
3-30
7
6
0
1 LUN
2 PC
Byte
3
4
5 0 0
Bit
5 4 3
X
'1A'
0 DBD
Page Code
Sub Page Code
Transfer Byte Length
0 0 0
2 1 0
0 0 0
0 0 Link
C141-C010