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2.5
R
ECORDING AND INTERFACE TECHNOLOGY
Interface
Recording method
Recording density BPI (bits/in avg)
Track density TPI (tracks/in avg)
2
Areal density (Gb/in
avg)
Spindle speed (RPM) (± 0.2%)
Maximum Internal transfer rate (Mb/s)
I/O data-transfer rate (Gb/s max)
Interleave
Cache buffer
2.6
P
HYSICAL CHARACTERISTICS
D
RIVE SPECIFICATION
Height
(mm)
(in)
Width
(mm)
(in)
Length
(mm)
(in)
Weight (max)
All models
2.7
S
EEK TIME
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The
specifications in the table below are defined as follows:
• Track-to-track seek time is an average of all possible single-track seeks in both directions.
• Average seek time is a true statistical random average of at least 5000 measurements of seeks between random tracks, less overhead.
Table 2 Typical seek times
T
(
)
YPICAL SEEK TIMES
MS
Track-to-track
Average
Average latency
These drives are designed to consistently meet the seek times represented in this manual. Physical
seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted values.
N
OTE
However, due to the manner in which these drives are formatted, benchmark tests that include
command overhead or measure logical seeks may produce results that vary from these specifications.
M
T
P
OMENTUS
HIN
RODUCT
4K
Serial ATA (SATA)
Perpendicular
1397k
315k
425
7200
1247
3.0
1:1
16 MB (16,384 KB)
6.8 +/-0.2
0.268 +/-0.0079
69.85 +/-0.25
2.75 +/-0.0098
100.35 +0.20/-0.25
3.951 +0.008/-0.010
92.0 g
0.203 lb
R
EAD
1.5
11
4.17
M
, G
-2 R
. G
ANUAL
EN
EV
SECTOR MODELS
7
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