Seagate ST960818SM データシート

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EE25.2 Series Product Manual, Rev. E
2.6
Physical characteristics  
2.7
Seek time
Seek measurements are taken with nominal power. All times are measured using drive diagnostics. The spec-
ifications 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 5,000 measurements of seeks between 
random tracks, less overhead.
Note.
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 or exceed the 
noted values. 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 speci-
fications. 
PATA
SATA
Height
(mm)
 
(inches)
9.5 +/–0.2
 
0.374  +/–0.008
9.5 +/–0.2
 
0.374  +/–0.008
Width
(mm)
 
(inches)
69.85 +/–0.25
 
2.750  +/–0.010
69.85 +/–0.25
 
2.750  +/–0.010
Length
(mm)
 
(inches)
100.2 +/–0.25
 
3.945 +/–0.010
100.5 +/- 1.58
 
3.957 +/- 0.062
Maximum  weight
(grams)
 
(pounds)
102
 
0.22
102
 
0.22
Read (all temperatures)
Write (all temperatures)
msec
msec
Typical
Max
Typical
Max
Track-to-track
0.7
1
1
2
Average
13
14
14
15
Full-stroke
23
24
25
27
Average latency
5.6
5.6