Seagate SkyHawk Surveillance AI ST20000VE004 20TB 3.5" 512MB Cache SATA III Internal Hard Drive

Key Features

• 512 MB data buffer.
• Full-track multiple-sector transfer capability without local processor intervention.
• High instantaneous (burst) data-transfer rates (up to 600MB per second).
• Native Command Queuing with command ordering to increase performance in demanding applications.
• PowerChoice for selectable power savings
• Perpendicular recording technology provides the drives with increased areal density.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Supports latching SATA cables and connectors.
• Top Cover Attached motor for excellent vibration tolerance
• Worldwide Name (WWN) capability uniquely identifies the drive

Drive specification

Formatted (512 bytes/sector)

20TB

Heads

20

Discs

10

Bytes per logical sector

512

Bytes per physical sector

4096

Recording density, KBPI (Kb/in max)

2426

Track density, KTPI (ktracks/in avg.)

436

Areal density, (Gb/in2 avg)

1028

Spindle speed (RPM)

7200

Internal data transfer rate (Mb/s max)

2833

Sustained data transfer rate OD (MB/s max)

250

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

512MB

Weight: (maximum)

670g (1.477 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) 2.0A

Voltage tolerance (including noise)

5V ± 5%

12V ± 10%

Operating ambient temperature (min °C)

* 0°C (Ambient)

Operating temperature (max °C)

* 65°C (Drive Reported Temperature)