Sony SDX-800V/R manual Code 1Bh Reserved, Hold EOT Reten Load Control, Read, With Write

12. Appendix E

Note: The above information has been taken from an unofficial version of the SCSI-3 Stream Commands. In case of any conflict, the published ANSI standard prevails.

Table 12-1

Bit	7	6		5	4		3	2	1		0
Byte
0					OPERATION		CODE ( 1Bh)
1					Reserved						IMMED
2						Reserved
3						Reserved
4			Reserved				HOLD	EOT		RETEN	LOAD
5						CONTROL

Note: For non-memory component media, the device firmware ignores the above command and threads the tape in order to provide the required data.

12.5.NEW COMMANDS

A MAM attribute is represented in a format described in the next section and is composed of:

1.An attribute identifier,

2.An attribute format code,

3.A bit indicating whether the identified attribute is read only,

4.An attribute length specifying the number of bytes in the identified attribute value, and

5.The value of the identified attribute.

There are three types of attribute (table 12-2)

Table 12-2: Types of MAM Attributes

Attribute	Attribute Source	Example	Readable with	Writeable
Type			READ	with WRITE
			ATTRIBUTE	ATTRIBUTE
Medium	Permanently stored in the	Media	Yes	No
	medium auxiliary memory	Serial
	during manufacture.	Number
Device	Maintained by the	Load	Yes	No
	device server	Count
Host	Maintained by the	Backup	Yes	Yes
	application client.	date

Depending on that attribute type, attributes have the states shown in table 12-3

12-2 SONY AIT-3Ex drive SDX-800V series Ver.1.1