Physical Characteristics; Seek Time - Seagate EE25.2 - Series 80 GB Hard Drive Product Manual

2.6

Physical characteristics

Height (mm)
(inches)
Width (mm)
(inches)
Length (mm)
(inches)
Maximum weight (grams)
(pounds)
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.
These drives are designed to consistently meet the seek times represented in this manual. Physical
Note.
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.
Track-to-track
Average
Full-stroke
Average latency
14
PATA
9.5 +/–0.2
0.374 +/–0.008
69.85 +/–0.25
2.750 +/–0.010
100.2 +/–0.25
3.945 +/–0.010
102
0.22
Read (all temperatures)
msec
Typical Max
0.7 1
13 14
23 24
5.6
SATA
9.5 +/–0.2
0.374 +/–0.008
69.85 +/–0.25
2.750 +/–0.010
100.5 +/- 1.58
3.957 +/- 0.062
102
0.22
Write (all temperatures)
msec
Typical Max
1 2
14 15
25 27
5.6
EE25.2 Series Product Manual, Rev. E