Seagate BARRACUDA 7200.8 300GB ST3300831AS-RK Manual De Usuario

6

Barracuda 7200.8 Serial ATA Product Manual, Rev. B

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.

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.

Interface

Serial ATA (SATA)

Recording method

16/17 EPRML

Recording density BPI (bits/inch max)

763,000)

Track density TPI (tracks/inch avg)

120,000

Areal density (Mbits/inch

2

 avg)

91,560

Spindle speed (RPM) (± 0.2%)

7,200

Internal data transfer rate (Mbytes/sec max)

95

Sustained transfer rate OD (Mbytes/sec max)

65

I/O data-transfer rate (Mbytes/sec max)

150 (SATA 1.0)

Interleave

1:1

Cache buffer

8 Mbytes

Maximum height

 

(mm)

 

(inches)

 

26.11

 

1.028

Maximum width

 

(mm)

 

(inches)

 

101.85

 

4.010

Maximum length

 

(mm)

 

(inches)

 

146.99

 

5.787

Maximum weight

 

(grams)

 

(pounds)

 

635

 

1.39

Track-to-track

0.8

1.0

Average

8.0

9.0

Average latency:

4.16

4.16