Seek Time; Start/Stop Times; Power Specifications - Maxtor STM3160215AS Product Manual

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:
*Measured in performance mode.
**Measured in quiet mode.
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)
2.8

Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 30.
DiamondMax 21 Serial ATA Product Manual, Rev. C
500-320 GB
STM3250820AS* STM3250824AS
Read Write Read
<0.8 <1.0 <0.8
<8.5 <10.0 <8.0
4.16
500-320 GB STM3250824AS
15 (max) 11 (max)
15 (max) 11 (max)
10 (max) 12 (max)
STM3250310AS**
Write Read Write
<1.0 <1.0 <1.2
<9.0 <11.0 <12.0
STM3250820AS
STM3250310AS
11 (max)
15 (max)
10 (max)
160 - 80 GB
STM340215AS**
Read Write
<1.0 <1.2
<11.0 <12.0
160 - 40 GB
7.9 (max)
7.9 (max)
10 (max)
19