Seagate Enterprise NAS HDD +SRS Product Manual, Rev. B
8
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
2.5
Physical characteristics
Interface
SATA
Recording method
TGMR
Recording density (
kFCI)
1941
Track density
(ktracks/inch avg)
340
Areal density
(Gb/in
2
)
642
Internal data transfer rate
(Mb/s max)
2347
Maximum sustained data transfer rate, OD read
(MB/s) 216
Average data rate, read/write
(MB/s)
154
I/O data-transfer rate
(MB/s max)
600
Maximum height
26.11mm / 1.028 in
Maximum width
101.6mm / 4.0 in (± 0.010 in)
Maximum length
146.99mm / 5.787 in
Typical weight
6TB
780g / 1.72 lb
5TB
700g / 1.54 lb
4TB
620g / 1.372 lb
3TB
2TB
540g / 1.19 lb
Cache buffer
128MB