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2.2
Formatted capacity
ST models
ST18000NM000J, ST18000NM001J
ST16000NM000J, ST16000NM001J
ST14000NM000J, ST14000NM001J
ST12000NM000J, ST12000NM001J
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary
depending on operating environment and formatting.
NOTE
2.2.1
Fast Format - logical sector size conversion
Drive supports either 512E or 4KN logical sector size formats
SET SECTOR CONFIGURATION EXT (B2h) command (ACS-4 Standard) quickly converts between 512 and 4096 byte logical
sector size formats
The selected sector size change occurs immediately upon command completion
Default shipping format is 512E
Table 3 SET SECTOR CONFIGURATION EXT command inputs
Field
FEATURE
COUNT
LBA
DEVICE
COMMAND
COMMAND CHECK field value is taken from the DESCRIPTOR CHECK field in the descriptor specified by the
SECTOR CONFIGURATION DESCRIPTOR INDEX field
SECTOR CONFIGURATION DESCRIPTOR INDEX field specifies the Sector Configuration descriptor in the Set Sector
Configuration log page
Seagate Exos X18 SATA Product Manual, Rev. B
Formatted
capacity*
18TB
16TB
14TB
12TB
LBA Counts for drive capacities greater than 8TB are calculated based upon the
SFF-8447 standard publication.
Description
COMMAND CHECK field
Bit Description
15 : 3 Reserved
2:0 SECTOR CONFIGURATION DESCRIPTOR INDEX field
Reserved
Bit Description
7 Obsolete
6 N/A
5 Obsolete
4 Transport Dependent
3:0 Reserved
7:0 B2h
Guaranteed
Bytes per
sectors
logical sector
35,156,656,128
31,251,759,104
512
(Default)
27,344,764,928
23,437,770,752
ftp://ftp.seagate.com/sff/SFF-8447.PDF
Drive specifications
Guaranteed
Bytes per
sectors
logical sector
4,394,582,016
3,906,469,888
4096
(see
Section
3,418,095,616
2,929,721,344
2.2.1)
9
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