Chapter 4 SCSI Commands
INQUIRY Command (12h)
DLT-S4 Interface Reference Guide
35
Table 16
INQUIRY
Command
Descriptor Block — Field
Descriptions
Standard Inquiry Data
Page
4
Figure 7
shows the
Standard Inquiry Data
page format.
Figure 7 Standard Inquiry Data
Page —Data Format
Field
Description
EVPD
Enable Vital Product Data. If set to 0, the drive returns the
Standard Inquiry Data. If EVPD is set to 1, the drive
returns the Vital Product Data Page specified by Page
Code.
Page Code Specifies the
Vital Product Data Page
that the drive is to
return when EVPD is set to 1.
Figure 9
shows the Page
Codes for the Vital Product Data pages the drive
supports.
Allocation
Length
Specifies the number of bytes of inquiry information the
drive is allowed to return to the initiator. The drive does
not return Error status if the value in this field truncates
the requested information.
Bit
7
6
5
4
3
2
1
0
Byte
0
Peripheral Qualifier
Peripheral Device Type
1
RMB
Reserved
2
Version
3
Obsolete
NormACA
HiSup
Response Data Format
4
Additional Length
5
SCCS
ACC
ALUA
3PC
Reserved
6
BQue
EncServ
VS
MultiP
MChngr
Obsolete
Addr16
7
RelAdr
Obsolete
Wbus16
Sync
Linked
Obsolete
CmdQue
VS
8 — 15
(MSB)
Vendor Identification (QUANTUM)
(LSB)