Seagate ST31500541AS ユーザーズマニュアル

Barracuda LP Series SATA Product Manual, Rev. A

7

Access time measurements are taken with nominal power at 25°C ambient temperature. All times are mea-
sured using drive diagnostics. The specifications in the table below are defined as follows:
• Track-to-track access time is an average of all possible single-track seeks in both directions.
• Average access time is a true statistical random average of at least 5,000 measurements of seeks between 

random tracks, less overhead. 

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.

26.1 mm (1.028 inches)

101.85 mm (4.010 inches)

146.99 mm (5.787 inches)

655 grams (1.444 lb.)

622 grams (1.371lb.)

32 Mbytes (16,384 kbytes)

Track-to-track

<1.0

<1.2

Average

<16.0

<16.0

Power-on to Ready (sec)

<13.0 (typical)

<8.0 (typical)

Standby to Ready (sec)

<8.0 (typical)

<6.0 (typical)

Ready to spindle stop (sec)

10 (max)