Seagate ST4000VX000 ユーザーズマニュアル

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:

The specifications listed in 

refer to the appropriate section of this manual. 

ST4000VX000

ST3000VX002

Formatted capacity (512 bytes/sector)**

4000GB (4TB)

3000GB (3TB)

Guaranteed sectors

7,814,037,168

5,860,533,168

Heads

8

Disks

4

Bytes per sector 
(4K physical emulated at 512-byte sectors)

4096

Default sectors per track

63

Default read/write heads

16

Default cylinders

16,383

Recording density (max)

1807kFCI

1550kFCI

Track density (avg)

340ktracks/in 

Areal density (avg)

625Gb/in

2 

536Gb/in

2 

Internal data transfer rate (max)

1813Mb/s 

Maximum sustained data rate, OD read (MB/s)

180MB/s

ATA data-transfer modes supported

PIO modes: 0 to 4

Multiword DMA modes: 0 to 2

Ultra DMA modes 0 to 6

I/O data-transfer rate (max)

600MB/s 

Cache buffer

64MB

Height (max)

26.1mm / 1.028 in

Width (max)

101.6mm /4.0 in (+ 0.010 in)

Length (max)

146.99mm / 5.787 in

Weight (typical)

610g / 1.345 lb

Average latency

5.1ms

Power-on to ready (max)

<17.0s

Standby to ready (max)

<17.0s

Average seek, read (typical)
Average seek, write (typical)

<12.0ms 
<12.0ms 

Startup current (typical) 12V 

2.0A

Voltage tolerance (including noise)

5V: ±5%

12V: ±10%        

Ambient temperature (drive case temperature)

0° to 70°C (operating)

–40° to 70°C (non-operating)

Temperature gradient

20°C per hour max (operating)

30°C per hour max (nonoperating)

Relative humidity

5% to 90% (operating)

5% to 95% (nonoperating)

Relative humidity gradient (max)

30% per hour