Seagate ST500VT000 Handbuch PDF herunterladen (Seite 9)

SEAGATE VIDEO 2.5 HDD PRODUCT MANUAL, REV. F 5

DRIVE SPECIFICATIONS

2.3 RECORDING AND INTERFACE TECHNOLOGY

Recording method Perpendicular

Recording density 1958 Kb/in

Track density 360 ktracks/in avg

Areal density 705 Gb/in

avg

Spindle speed 5400 RPM +/- 0.2%

Sustained data transfer rate 100 MB/s max

I/O data-transfer rate 300 MB/s max

2.4 PHYSICAL CHARACTERISTICS

Maximum height 6.8 +/- 0.2 mm (0.370 +/-.008 in)

Maximum width 69.85 +/- 0.25 mm (2.750 +/- 0.010 in)

Maximum length 100.35 +0.20 / -0.25 mm (3.951 +0.008 / -0.010 in)

Typical weight 95 g (0.209 lb)

Cache buffer 16 MB (16,192 KB)

2.5 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 5000 measurements of seeks between random tracks, less overhead.

Interface Serial ATA (SATA)

Table 2 Typical seek times

Typical seek times (ms) Read

Track-to-track 1.5

Average 12.0

Average latency 5.6

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..

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Seagate ST500VT000 Handbuch Seite 9