Physical Characteristics; Seek Time; Start/Stop Times - Seagate ST3160215ACE Product Manual

2.1.4

Physical characteristics

Drive specification
Maximum height
(mm)
(inches)
Maximum width
(mm)
(inches)
Maximum length
(mm)
(inches)
Typical weight
Cache Size
2.1.5

Seek 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 5,000 measurements of seeks between
random tracks, less overhead.
Typical seek times (msec)
Track-to-track
Average
Average latency
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 specifications.
2.1.6

Start/stop times

Power-on to Ready (sec)
Standby to Ready (sec)
Ready to spindle stop (sec)
DB35.3 Series SATA/PATA Product Manual, Rev. F
Read Write
<1.0 <1.2
<14.0 <15.0
4.16 4.16
16 (max)
16 (max)
10 (max)
20.2
0.794
101.6
4.000
146.6
5.772
380 grams (0.838 lbs) 160 GB models
370 grams (0.816 lbs) 80 GB models
2 Mbytes
7