2.4Physical characteristics

Maximum height (1000 GB models)

26.1 mm (1.028 inches)

 

 

Maximum height (320-160 GB models)

20.17 mm (0.794 inches)

 

 

Maximum width

101.6 mm (4.000 +/- 0.010 inches)

 

 

Maximum length

146.99 mm (5.787 inches)

 

 

 

Typical weight

 

 

1000 GB models

630 grams (1.389 lbs)

320 GB models

405 grams (0.893 lbs)

160 GB models

390 grams (0.860 lbs)

 

 

 

Cache buffer

 

 

STM31000334AS

32

Mbytes (32,768 kbytes)

STM3320614AS

16

Mbytes (16,384 kbytes)

STM3160813AS

8

Mbytes (8,192 kbytes)

 

 

 

2.5Seek 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 (1000, 320 and 160 GB models)

<0.8

<1.0

 

 

 

Average (1000 GB model)

<8.5

<10.0

 

 

 

Average (320 and 160 GB models)

<11.0

<12.0

 

 

 

Average latency:

4.16

 

 

 

 

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.

DiamondMax 22 Serial ATA Product Manual, Rev. A

9

Page 15
Image 15
Maxtor STM3160813AS, STM31000334AS, STM3320614AS Physical characteristics, Seek time, Typical seek times msec Read Write