User Manual

SCSI Commands Reference Manual, Rev. J 288
www.seagate.com Zone Block Commands (ZBC)
4.5.1 REPORT ZONES parameter data
The REPORT ZONES parameter data is defined in table 248.
ZONE LIST LENGTH field
The ZONE LIST LENGTH field shall contain the length in bytes of the zone descriptors list. The zone descriptors list is the list of zones that:
a) meet the requirements of the REPORTING OPTIONS field; and
b) include the LBA specified by the ZONE START LBA field or have a lowest LBA that is greater than the LBA specified by the ZONE START
LBA field.
If the PARTIAL bit is set to zero, then the content of the ZONE LIST LENGTH field is not altered based on the allocation length (see SPC-5). If the
PARTIAL bit is set to one then the ZONE LIST LENGTH field shall be set to the lesser of:
a) the allocation length minus 64 if the allocation length is greater than 64;
b) zero if the allocation length is less than or equal to 64; or
c) the length of the zone descriptors list.
Table 248 REPORT ZONES parameter data
Bit
Byte
7 6 5 4 3 2 1 0
0 (MSB)
ZONE LIST LENGTH (n–63). . .
3 (LSB)
4 Reserved SAME
5
Reserved. . .
7
8 (MSB)
MAXIMUM LBA. . .
15 (LSB)
16
Reserved. . .
63
ZONE DESCRIPTOR LIST
64
Zone descriptor [first]. . .
127
. . . . . .
n - 63
Zone descriptor [last]. . .
n