User Manual

SCSI Commands Reference Manual, Rev. J 483
www.seagate.com Parameters for direct access devices
5.4.9 Extended INQUIRY Data VPD page (86h)
The Extended INQUIRY Data VPD page (see table 455) provides the application client with a means to obtain information about the logical unit.
PERIPHERAL QUALIFIER field and the PERIPHERAL DEVICE TYPE field
The PERIPHERAL QUALIFIER field and the PERIPHERAL DEVICE TYPE field are defined in standard INQUIRY data (see 3.6.2).
PAGE CODE field
The PAGE CODE field shall be set to the value defined in table 455.
PAGE LENGTH field
The PAGE LENGTH field specifies the length of the following VPD page data and shall be set to 60. The relationship between the PAGE LENGTH
field and the CDB ALLOCATION LENGTH field is defined in 2.2.6.
ACTIVATE MICROCODE field
The ACTIVATE MICROCODE field (see table 456) indicates how a device server activates microcode and establishes a unit attention condition
when a WRITE BUFFER command (see 3.70) with the download microcode mode set to 05h or 07h is processed.
Table 455 Extended INQUIRY Data VPD page
Bit
Byte
7 6 5 4 3 2 1 0
0 PERIPHERAL QUALIFIER PERIPHERAL DEVICE TYPE
1 PAGE CODE (86h)
2 (MSB)
PAGE LENGTH (3Ch)
3 (LSB)
4 ACTIVATE MICROCODE
SPT
GRD_CHK APP_CHK REF_CHK
5 Reserved UASK_SUP GROUP_SUP PRIOR_SUP HEADSUP ORDSUP SIMPSUP
6 Reserved WU_SUP CRD_SUP NV_SUP V_SUP
7 Reserved NO_PI_CHK P_I_I_SUP Reserved LUICLR = 1
8 Reserved R_SUP Reserved RTD_SUP HSSRELEF Obsolete
9 Reserved MULTI I_T NEXUS MICROCODE DOWNLOAD
10 (MSB)
EXTENDED SELF-TEST COMPLETION MINUTES
11 (LSB)
12 POA_SUP HRA_SUP VSA_SUP Reserved
13 MAXIMUM SUPPORTED SENSE DATA LENGTH
14
Reserved. . .
63