User Manual

SCSI Commands Reference Manual, Rev. J 462
www.seagate.com Parameters for direct access devices
5.3.33 Seagate Specific Unit Attention parameters page (00h) for HDD
The Seagate Specific Unit Attention parameters page is the last page to be reported by the drive.
PS (Parameter Savable) bit
A Parameter Savable (PS) bit of one indicates that the drive is capable of saving the page in a nonvolatile vendor-specific location (used only
with MODE SENSE command).
SPF bit
The SPF bit is described in 5.2.2 and shall be set as shown in table 434.
PAGE CODE field
The PAGE CODE field is defined in SPC-5 and shall be set to the value defined in table 434.
PAGE LENGTH field
The PAGE LENGTH field specifies the length in bytes of the mode parameters that follow. If the initiator does not set this value to the value that
is returned for the page by the MODE SENSE command, the drive shall terminate the command with CHECK CONDITION status. The sense key
shall be set to ILLEGAL REQUEST with the additional sense code set to Invalid Field In Parameter List. See STRICT bit set to 0 description for
exceptions.
Table 434 Seagate Specific Unit Attention parameters page (00h) for HDD
Bit
Byte
7 6 5 4 3 2 1 0
0 PS SPF (0b) PAGE CODE (00h)
1 PAGE LENGTH (0Ah)
2 PM Reserved INQUIRY LENGTH UNIT ATTENTION Reserved ROUND STRICT SCSI-2
3 DAR
SELF
SEEK
Reserved
4
VJIT
Disabled
Reserved JIT3 JIT2 JIT1 JIT0
5 Reserved
6 Reserved
7 Reserved
8 Reserved
9 Reserved
10 (MSB)
COMMAND AGING LIMIT
11 (LSB)