Seagate ST32122A Product Manual - Page 16

8 Medalist 4342, 3232, 2122, 1722 and 1012 Product Manual Seek type Seek Read Write (msec, typ.) (msec, typ.) (msec, typ.) Track-to-track 2.0 2.5 3.5 Average 12.0 12.5 14.5 Full-stroke 21.5 22.0 23.0 Average latency: 6.67 msec 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. Due to the manner in which these drives are formatted, however, benchmark tests that include command overhead or measure logical seeks may produce results that vary from these specifications. 1.6 Start/stop times Power-on to Ready (sec) Standby to Ready (sec) Ready to spindle stop (sec) 14 (typical) 10 (typical) 8 (typical) 1.7 Power Specifications The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector. 1.7.1 Power consumption Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives tested under nominal conditions, using 5.0V input voltage at 25°C ambient temperature. Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed. During seek mode, the read/write actuator arm moves toward a specific position on the disc surface before executing a read or write operation. Servo electronics are active. Seek mode power is measured through the drive's serial port while the drive executes a series of sequential seeks. Read/Write power and current are measured with the heads on track, based on a 16-sector write followed by a 32-msec delay, then a 16-sector read followed by a 32-msec delay.