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2.2
Formatted capacity
ST models
Formatted capacity*
ST12000NM0007,
ST12000NM0017,
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
LBA Counts for drive capacities greater than 8TB are calculated based upon the SFF-8447 standard publication.
Note
ftp://ftp.seagate.com/sff/SFF-8447.PDF
2.2.1
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where n is the number of
guaranteed sectors as defined above.
See
Section 5.3.1, "Identify Device command"
support of drives with capacities over 137GB.
2.3
Recording and interface technology
Interface
Recording method
Recording density, KBPI (Kb/in max)
Track density, KTPI (ktracks/in avg)
2
Areal density (Gb/in
avg)
Spindle speed (RPM) (± 0.2%)
Internal data transfer rate (Mb/s max)
Sustained data transfer rate (MiB/s max)
I/O data-transfer rate (MB/s max)
2.4
Start/stop times
Power-on to Ready (sec) (typ/max)
Standby to Ready (sec) (typ/max)
Ready to spindle stop (sec) (max)
Seagate Exos X12 SATA Product Manual, Rev. C
Guaranteed sectors
12TB
23,437,770,752
(words 60-61 and 100-103) for additional information about 48-bit addressing
20/30
20/30
20
Bytes per logical sector
512
Serial ATA (SATA)
Perpendicular
2283
392
923
7200
2685
248
600 (Ultra DMA mode 5)
9
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