Physical Characteristics; Seek Time; Start/Stop Times - Seagate Barracuda 7200.10 Serial ATA Product Manual

2.5

Physical characteristics

Maximum height
Maximum width
Maximum length
Typical weight
Cache buffer
ST3250410AS
ST3250310AS
2.6

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:
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 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.
2.7

Start/stop times

Power-on to Ready (sec)
Standby to Ready (sec)
Ready to spindle stop (sec)
Barracuda 7200.10 Serial ATA Product Manual, Rev. B
20.17 mm (0.7957 inches)
101.85 mm (4.010 inches)
146.99 mm (5.787 inches)
380 grams (0.838 lbs)
16 Mbytes (16,384 kbytes)
8 Mbytes (8,192 kbytes)
Read Write
<0.8 <1.0
<11.0 <12.0
4.16
7.9 (max)
7.9 (max)
10 (max)
7