Sony SDX-800V/R User Manual

6-68 

 

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

Table 6-64: READ ATTRIBUTE service action codes 

00h 

Attribute Values 

Return attribute values. 

01h Attribute 

List 

Returns a list of available attribute identifiers, identifiers 

that are not in the nonexistent or unsupported state.  

02h 

Volume List 

Return a list of known Volume Numbers. 

03h 

Partition List 

Return a list of known Partition Numbers. 

04h 

Reserved for SMC-2 

 

05h – 1Fh 

Reserved 

 

The VOLUME NUMBER specifies a volume within the Medium Auxiliary Memory. The number of volumes of the 

MAM shall equal that of the attached multi-volume medium. If the medium only has a single volume, then its volume 

number shall be zero. 

The PARTITION NUMBER specifies a partition within a volume. The number of partitions of the MAM shall equal 

that of the attached multi-partition medium. If the medium only has a single partition, then its partition number shall 

be zero. 

If the combination of VOLUME NUMBER and PARTITION NUMBER is not valid, the command shall be terminated 

with CHECK CONDITION status. The sense key shall be set to ILLEGAL REQUEST, and the additional sense data 

shall be set to INVALID FIELD IN CDB. 

The FIRST ATTRIBUTE IDENTIFIER field specifies the attribute identifier of the first attribute to be returned. If the 

specified attribute identifier is in the unsupported or nonexistent state, the READ ATTRIBUTE shall be terminated 

with a CHECK CONDITION status. The sense key shall be set to ILLEGAL REQUEST, and the additional sense 

data shall be set to INVALID FIELD IN CDB. 

The ALLOCATION LENGTH field specifies how many bytes have been allocated of the first attribute to be returned.  

If the length is not sufficient to contain the entire parameter list, the first portion of the list shall be returned. This shall 
not be considered an error. If the remainder of the list is required, the application client should either send a new 

READ ATRRIBUTE command with an ALLOCATION LENGTH field large enough to contain the entire parameter list 

or use the FIRST ATTRIBUTE IDENTIFIER field to restrict the attributes returned. 

The format of parameter data returned by the READ ATTRIBUTE command depends on the service action 

specified. 

 

The READ ATTRIBUTE command with ATTRIBUTE VALUES service action returns parameter data containing the 
attributes specified by the PARTION NUMBER, VOLUME NUMBER, and FIRST ATTRIBUTE INDENTIFIER fields 

in the CDB. The returned parameter data shall contain the requested attributes in ascending numerical order by 

attribute identifier value and in the format shown in table 6-65.