Maxtor ST31000424CS, ST3250312CS manual Physical characteristics, Seek time, Start/stop times

2.5	Physical characteristics
		1000 GB model			500 and 250GB model
Maximum height		26.1 mm (1.028 inches)			20.20 mm (0.794 inches)
Maximum width		101.85 mm (4.010 inches)
Maximum length		146.99 mm (5.787 inches)
Typical weight		600 grams (1.323 lb.)			380 grams (0.838 lb.)
Cache buffer
	ST31000424CS and ST3500414CS	16	Mbytes	(16,384 kbytes)
ST31000322CS, ST3500312CS and ST3250312CS		8	Mbytes	(8,192 kbytes)

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	<1.0	<1.2
Average	<14.0	<15.0

*Measured in performance mode. **Measured in quiet mode.

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 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

	1000 GB models	500 and 250 GB models
Power-on to Ready (sec)	<12.0 (typical)	<6.0 (typical)
Standby to Ready (sec)	<12.0 (typical)	<6.0 (typical)
Ready to spindle stop (sec)	10 (max)

Pipeline HD.2 Series SATA Product Manual, Rev. A 9