Seagate Desktop HDD Product Manual, Rev. J
8
www.seagate.com
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
(kFCI)
3TB, 2TB, 1.5TB, 1TB and 750GB models
1807
500GB, 320GB and 250GB models
1413
Track density
(ktracks/inch avg)
352
Areal density
(Gb/in
2
)
3TB, 2TB, 1.5TB, 1TB and 750GB models
625
500GB, 320GB, 250GB models
329
Spindle speed
(RPM)
7200 ± 0.2%
Internal data transfer rate
(Mb/s max)
2147
Maximum sustained data transfer rate, OD read
(MB/s)
3TB, 2TB, 1.5TB, 1TB and 750GB models
210
500GB, 320GB, 250GB models
144
Average data rate, read/write
(MB/s)
3TB, 2TB, 1.5TB, 1TB and 750GB models
156
500GB, 320GB, 250GB models
125
I/O data-transfer rate
(MB/s max)
600
