Seagate Desktop SSHD Product Manual, Rev. K
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)
1807
Track density
(ktracks/inch avg)
1TB and 2TB
352
4TB
340
Areal density
(Gb/in
2
)
625
Spindle speed
(RPM)
1TB and 2TB
7200 ± 0.2%
4TB
5900 ± 0.2%
Internal data transfer rate
(Mb/s max)
1TB and 2TB
2147
4TB
1813
Maximum sustained data transfer rate, OD read
(MB/s
1TB and 2TB
210
4TB
180
Average data rate, read/write
(MB/s)
1TB and 2TB
156
4TB
146
I/O data-transfer rate
(MB/s max)
600
