Sony SDX-800V/R User Manual

SONY AIT-3Ex drive SDX-800V series Ver.1.1 

 

6-3 

Operation Code (12h) 

Obsolete Reserved 

CmdDT 

EVPD 

Page or Operation Code 

Reserved 

Allocation Length 

Control 

INQUIRY tells the drive to send information regarding the drive parameters to the initiator. 

CmdDT: The Command support data (CmdDT) bit of one specifies that the drive returns the optional support data 

specified by the operation code field. 

EVPD: The Enable Vital Product Data (EVPD) bit of one specifies that the drive returns the optional vital product 

data specified by the page code field. 

If both the CmdDT and EVPD bits are zero, the drive returns the standard INQUIRY data. If the page or operation 

code field is not zero when both CmdDT and EVPD are zero, the drive returns a CHECK CONDITION status with an 
ILLEGAL REQUEST Sense Key. 

If the CmdDT and EVPD bits are one, the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST 

Sense Key. 

When the EVPD bit is set to one, the drive returns vital product data that is specified in the page or operation code 

field. If the page or operation code field is reserved or not implemented by the target, the target shall terminate the 

command with a CHECK CONDITION status. The sense key shall be set to ILLEGAL REQUEST. 

When the CmdDT bit is set to one, the page or operation field specifies the SCSI operation code for which the drive 

shall return support data. 

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 have been transferred to the initiator, whichever is less.