Seagate Desktop HDD Product Manual, Rev. A
8
Drive Specifications
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 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-bit
addressing support of drives with capacities over 137GB.
2.3
Default logical geometry
•
Cylinders
: 16,383
•
Read/write heads
: 16
•
Sectors per track
: 63
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
.
2.4
Recording and interface technology
Interface
SATA
Recording method
TGMR
Recording density
3TB 1849kFCI
4TB 2054kFCI
Track density
(ktracks/inch avg)
3TB and 4TB 390
Areal density
(Gb/in
2
)
3TB 730
4TB 811
Internal data transfer rate
(Mb/s max)
3TB 1858
4TB 2111
Maximum sustained data transfer rate, OD read
(MB/s)
3TB and 4TB 190
Average data rate, read/write
(MB/s)
3TB and 4TB 161
I/O data-transfer rate
(MB/s max)
600
