User Manual

SCSI Commands Reference Manual, Rev. J 65
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3. Direct Access Block commands (SPC-5 and SBC-4)
This clause describes the commands supported by Seagate Disk Drives.
Commands that have been supported prior to this manual being produced and that are now indicated as obsolete will be
described in this clause as obsolete. However, a description will be provided for such commands.
Commands that have been declared obsolete by the T10 committee and were never supported by Seagate are not included in
this manual. Commands that have not been supported in the past, but may be supported in the near future will be included in
this manual.
This clause contains information about the commands used by Seagate Fibre Channel and Serial Attached SCSI disk drives. This
clause is organized to provide rapid access to command information.
Two types of commands are supported by the drive: commands for all devices; and commands for direct access devices. The
individual Product Manuals for each Seagate model drive list the Commands and parameter pages that the particular drive
supports.
Table 30 Commands sorted by command name
Command name OP code [1]
Command type
Clause
Reference
All
devices
Direct access
devices
BACKGROUND CONTROL
9Eh/15h x 3.1
CHANGE DEFINITION
[2]
40h x 3.2
FORMAT UNIT
04h x 3.3
GET LBA STATUS
9Eh/12h x 3.4
GET STREAM STATUS
9Eh/16h x 3.5
INQUIRY
12h x 3.6
LOG SELECT
4Ch x 3.7
LOG SENSE
4Dh x 3.8
MODE SELECT (6)
15h x 3.9
MODE SELECT (10)
55h x 3.10
MODE SENSE (6)
1Ah x 3.11
MODE SENSE (10)
5Ah x 3.12
PERSISTENT RESERVE IN
5Eh x 3.13
PERSISTENT RESERVE OUT
5Fh x 3.14
READ (6)
08h x 3.15
READ (10)
28h x 3.16
READ (12)
A8h x 3.17
READ (16)
88h x 3.18
READ (32)
7Fh/0009h x 3.19
READ BUFFER (10)
3Ch x 3.20
READ BUFFER (16)
9Bh x 3.21