User Manual

SCSI Commands Reference Manual, Rev. J 91

www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)

3.5.1.1 Stream status descriptor

The stream status descriptor (see table 57) contains stream status information for one open stream.

STREAM IDENTIFIER field

The STREAM IDENTIFIER field contains the stream identifier of an open stream.

3.5.1.2 Stream status descriptor relationships

The STREAM IDENTIFIER field in the first stream status descriptor returned in the GET STREAM STATUS parameter data shall contain:

a) the value specified in the STARTING STREAM IDENTIFIER field of the CDB if that stream is open; or

b) the value of the next greater stream identifier of an open stream.

If the value specified in the STARTING STREAM IDENTIFIER field of the CDB is greater than the highest stream identifier of an open stream, then

the device server shall not return any stream status descriptors. For subsequent stream status descriptors, the contents of the STREAM IDENTI-

FIER field shall contain the value of the next greater stream identifier of an open stream.

Table 57 Stream status descriptor format

Bit

Byte

7 6 5 4 3 2 1 0

Reserved

2 (MSB)

STREAM IDENTIFIER

3 (LSB)

Reserved. . .