Seagate NAS HDD Product Manual, Rev. F
11
www.seagate.com
Drive Specifications
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
8TB
Perpendicular
1TB - 4TB and 6TB
TGMR
Recording density
1TB, 2TB and 4TB
1807kFCI
3TB
1550kFCI
6TB
1981kFCI
8TB
2241kBPI
Track density (ktracks/inch avg)
1TB and 2TB
352
3TB and 4TB
340
6TB
320
8TB
362
Areal density (Gb/in
2
)
1TB, 2TB and 4TB
625
3TB
536
6TB
633
8TB
1333
Internal data transfer rate (Mb/s max)
1TB
2147
2TB, 3TB and 4TB
1813
6TB
1981
8TB
2546
Maximum sustained data transfer rate, OD read (MB/s)
1TB and 2TB
159
3TB and 4TB
180
6TB and 8TB
230
I/O data-transfer rate (MB/s max)
600
