User Manual

SCSI Commands Reference Manual, Rev. J 289
www.seagate.com Zone Block Commands (ZBC)
SAME field
The SAME field is defined in table 249. If the ZONE LIST LENGTH field is zero then the SAME field is invalid and should be ignored by the appli-
cation client.
MAXIMUM LBA field
The MAXIMUM LBA field contains the LBA of the last logical block on the logical unit.
Zone Descriptors
The zone descriptors list contains zone descriptors that shall be sorted in ascending order based on the ZONE START LBA field of each zone
descriptor.
Each zone descriptor (see table 250) contains the description of a single zone.
Table 249 SAME field description
Code Description
0h The zone type and zone length in each zone descriptor may be different.
1h The zone type and zone length in each zone descriptor are equal to the zone type and zone length indicated in the first zone
descriptor in the zone descriptor list.
2h The zone type in each zone descriptor is equal to the zone type indicated in the first zone descriptor in the zone descriptor list.
The zone length of each zone except the last zone is equal to the zone length of the first zone descriptor in the zone descriptor
list. The zone length of the last zone descriptor is different than the zone length of the first descriptor in the zone descriptor list.
3h The zone type in each descriptor may be different. The zone length in each zone descriptor is equal to the zone length indicated
in the first zone descriptor in the zone descriptor list.
4h to Fh Reserved
Table 250 Zone descriptor format
Bit
Byte
7 6 5 4 3 2 1 0
0 Reserved ZONE TYPE
1 ZONE CONDITION Reserved NON_SEQ RESET
2
Reserved. . .
7
8
ZONE LENGTH. . .
15
16
ZONE START LBA. . .
23
24
WRITE POINTER LBA. . .
31
32
Reserved. . .
63