DLT4000 SCSI Interface
DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem 8-17
8.4.4 INQUIRY (12h)
Bit
7
6
5
4
3
2
1
0
0
Operation Code (12h)
1
Logical Unit Number
Reserved
Long
Byte
2
Page Code
3
Reserved
4
Allocation Length
5
Unused
Reserved
Flag
Link
Figure 8-4
INQUIRY CDB
INQUIRY tells the drive to send information regarding the device's parameters to the
initiator.
The INQUIRY command executes normally even if the specified LUN is not attached.
INQUIRY returns a Check Condition status only when the target cannot return the
requested Inquiry data. If INQUIRY is received from an initiator with a pending
UNIT ATTENTION condition (before the drive reports CHECK CONDITION status),
the target will perform the INQUIRY and will not clear the UNIT ATTENTION
condition.
EVPD
The DLT4000 drive implements the Vital Product Data pages option on LUNs 0 and
the optional medium loader LUN.
Page Code
There are three Vital Product Data pages implemented:
00h - Supported Vital Product Data pages
80h - Unit Serial Number page
C0h - Code Build Information page
If the page code field contains a different value, the drive generates a CHECK
CONDITION with ILLEGAL REQUEST sense key.
Allocation Length
This specifies the maximum number of bytes that the initiator has allocated for
returned Inquiry data. An Allocation Length of zero indicates that no Inquiry data is
transferred. This condition is not considered an error. The drive will terminate the
DATA IN phase when Allocation Length bytes have been transferred, or when all
available Inquiry data has been transferred to the initiator, whichever is less.
Summary of Contents for DLT 4700
Page 1: ...DLTTM 4000 DLTTM 4500 DLTTM 4700 Cartridge Tape Subsystem Product Manual...
Page 2: ......
Page 160: ...Firmware Update From Tape 7 18 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 215: ...DLT4000 SCSI Interface DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem 8 55...
Page 304: ...DLT4000 SCSI Interface 8 144 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 342: ...Sense Key Information C 6 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 359: ...Index DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem 7...
Page 360: ...Index 8 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...