Seagate ST3200827ACE, ST3120213ACE manual Physical characteristics, Seek time, Start/stop times

2.5Physical characteristics

Drive specification
Maximum height
(mm)	26.1
(inches)	1.028
Maximum width
(mm)	101.6
(inches)
	4.000 ± 0.010
Maximum length
(mm)	146.99
(inches)	5.787
Typical weight
ST3500841ACE	710 grams (1.57 lbs)
ST3400833ACE
ST3300822ACE	655 grams (1.44 lbs)
ST3250824ACE	580 grams (1.28 lbs)
ST3200827ACE
ST3160212ACE
ST3120213ACE
ST3802110ACE

2.6Seek 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)	Read	Write
Track-to-track	0.8	1.0
Average	18	20
Average latency:	4.16	4.16

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.

2.7Start/stop times

Power-on to Ready (sec)	16
Standby to Ready (sec)	16 (max)
Ready to spindle stop (sec)	10 (max)

12 DB35 Series 7200.2 Product Manual, Rev. D