User Manual

SCSI Commands Reference Manual, Rev. J 123
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3.13.5 READ FULL STATUS service action
The READ FULL STATUS service action requests that the device server return a parameter list describing the registration and
persistent reservation status of each currently registered I_T nexus for the logical unit.
For more information on READ FULL STATUS see
SPC-5.
The format for the parameter data provided in response to a PERSISTENT RESERVE IN command with the READ FULL STATUS
service action is shown in table 86.
PRGENERATION field
The PRGENERATION field shall be as defined for the PERSISTENT RESERVE IN command with READ KEYS service action parameter data (see
3.13.2).
ADDITIONAL LENGTH field
The ADDITIONAL LENGTH field contains a count of the number of bytes to follow in the full status descriptors. The relationship between the
ADDITIONAL LENGTH field and the CDB ALLOCATION LENGTH field is defined in 2.2.6.
Table 86 PERSISTENT RESERVE IN parameter data for READ FULL STATUS
Bit
Byte
7 6 5 4 3 2 1 0
0 (MSB)
PRGENERATION. . .
3 (LSB)
4 (MSB)
ADDITIONAL LENGTH (N-7). . .
7 (LSB)
Full status descriptors
8
Full status descriptor [first] (see table 87)
. . .
. . .
Full status descriptor [last] (see table 87)
n