Product Manual - Disc Drive SCSI-2/SCSI-3 Interface (Vol. 2; Ver. 2), Rev. E 121
_____________________________________________________________________________________
5.1.3.4
Other Group 2 Commands (Operation Codes 41h through 4Bh and 4Eh through 5Fh)
No other group 2 commands are implemented by the disc drive. A “Check Condition” status is sent if re-
ceived.
5.1.4
Groups 3 through 5 Commands for All Device Types (Operation Codes 60h through BFh)
Not implemented. A “Check Condition” status is sent if received.
5.1.5
Group 6 Commands for all device types (Operation Codes C0h through DFh)
Reserved for Seagate usage. Customers should not attempt to use these functions. If these functions are
used, the users stored data may be destroyed.
5.1.6
Group 7 Commands for all device types (Operation Codes EOh through FFh)
Same as Group 6 Commands.
5.2
Command descriptions for direct access devices
The disc drive supports Group 0, and Group 1 commands for Direct Access Devices. Refer to sections listed
below for more details on these commands.
5.2.1
Group 0 Commands for Direct Access Devices
The Group 0 Commands for direct access devices implemented by disc drive are listed in Table 5.2.1-1,
together with group 0 commands implemented for all devices.
Table 5.2.1-1. Group 0 Commands Implemented
Operation
Code (HEX)
Command Name
Section
00
TEST UNIT READY (All devices)
5.1.1.1
01
REZERO UNIT
5.2.1.1
03
REQUEST SENSE (All devices)
5.1.1.2
04
FORMAT UNIT
5.2.1.2
07
REASSIGN BLOCKS
5.2.1.3
08
READ
5.2.1.4
0A
WRITE
5.2.1.5
0B
SEEK
5.2.1.6
12
INQUIRY (All devices)
5.1.1.3
15
MODE SELECT
5.2.1.7
16
RESERVE
5.2.1.8
17
RELEASE
5.2.1.9
1A
MODE SENSE
5.2.1.10
1B
START/STOP UNIT
5.2.1.11
1C
RECEIVE DIAGNOSTIC RESULTS
(All devices)
5.1.1.5
1D
SEND DIAGNOSTIC (All devices)
5.1.1.6
