SEAGATE (ST8000VX004) - Инструкция по эксплуатации - Страница 7

Seagate SkyHawk  Serial ATA Product Manual, Rev. B

  6

2.0

Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the

phrases 

the drive

 and 

this drive

 are used throughout this manual to indicate the following drive models

2.1

Specification summary tables

The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the

appropriate section of this manual.

Table 1 Drive specifications summary 

5xxE Standard models

ST8000VX004

Drive specification

ST8000VX004

Formatted (512 bytes/sector)

#

8TB

Guaranteed sectors

(see 

Section 2.2

)

Heads

10

Discs

5

Bytes per logical sector

512

Bytes per physical sector

4096

Recording density, KBPI (Kb/in max)

2509

Track density, KTPI (ktracks/in, 0 skew)

371

Areal density, (Gb/in

2

, @ 0 skew mid-disk)

930

Spindle speed (RPM)

7200

Internal data transfer rate (Mb/s max)

2850

Sustained data transfer rate OD (MiB/s max)

200 (210 MB/s max)

I/O data-transfer rate (MB/s max)

600

ATA data-transfer modes supported

PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–6

Cache buffer

256MB (262,144KB)

Weight: (maximum)

716g (1.579 lb)

Average latency

4.16ms

Power-on to ready (sec) (typ/max)

23/30

Standby to ready (sec) (typ/max)

23/30

Startup current (typical) 12V (peak)

1.8A

Voltage tolerance (including noise)

  5V +10/-5%

12V ±10%

Non-Operating temperature

–40° to 70°C (Ambient Temperature, see sections 

2.6

 and 

2.11

)

Operating temperature

*

5°C

Operating temperature

*

70°C

Temperature gradient (°C per hour max)

20°C (operating)

30°C (nonoperating)

Relative humidity

*

5% to 95% (operating)

5% to 95% (nonoperating)

Relative humidity gradient

30% per hour max

Altitude, operating

–304.8 m to 3,048 m

(–1000 ft to 10,000+ ft)