Seagate 3240, 2531 manual Seek time, Start/stop times, Seek Read Write Seek type Msec, typ

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 7

1.5 Seek time

All seek times are measured using a 486 AT computer (or faster) with an

8.3MHz I/O bus. The measurements are taken with nominal power at sea level and 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.

∙Full-stroke seek time is one-half the time needed to seek from the first data cylinder to the maximum data cylinder and back to the first data cylinder. The full-stroke typical value is determined by averaging 100 full-stroke seeks in both directions.

	Seek	Read	Write
Seek type	(msec, typ.)	(msec, typ.)	(msec, typ.)
Track-to-track	2.0	2.5	3.5
Average	12.0	12.5	14.5
Full-stroke	23.5	24.0	25.0
Average latency: 6.67 msec

Note. This drive is designed to consistently meet the seek times repre- sented in this manual. Physical seeks, regardless of mode (such as track-to-track and average) are expected to meet or exceed the noted values. Due to the manner in which this drive is for- matted, however, benchmark tests that include command over- head or measure logical seeks may produce results that vary from these specifications.

1.6 Start/stop times

Power-on to Ready (sec)	9 (typical)
Standby to Ready (sec)	9 (typical)
Ready to Complete Stop (sec)	9 (typical)