Твърд диск 3TB HGST Ultrastar 7K4000, SAS 6Gb/s, 7200 rpm, 64 MB, 3.5" (8.89 cm)

HGST Ultrastar 7K4000
HUS724030ALS640

For high-capacity, reliable and affordable storage the Ultrastar® 7K4000 4GB delivers economical data center storage. Designed for cost-effective, efficient, high-volume storage, the drive includes the innovative Rotational Vibration Safeguard (RVS) technology to optimize drive reliability in multi-drive RAID arrays and rack-mounted systems. Engineered for the highest quality, the Ultrastar 7K4000 passes stringent reliability testing. The ultra-reliable Ultrastar 7K4000 delivers the value you need to lower your data center's TCO.

Highlights
• 2.0 million hours MTBF1
• Up to 4 terabytes2
of capacity
• SATA 6Gb/s and SAS 6Gb/s models for configuration
flexibility
• Advanced Format* SATA with 512-byte
emulation (512e)*
• Dual Stage Actuator (DSA) and Enhanced Rotational
Vibration Safeguard (RVS) for robust performance in
multi-drive environments
• 24x7 accessibility for enterprise-class, capacityoptimized
applications

Configuration

Interface SAS 6Gb/s

Capacity (GB)3TB
at 512 bytes/sector 3TB
Form factor 3.5-inch
Sector size (bytes)3 512e , 512n
Max. areal density (Gbits/sq. in) , 475 (512n)

Performance
Data buffer (MB) 64
Rotational speed (RPM) 7200
Interface transfer rate (MB/s, max) 600
Sustained transfer rate (MB/s, typical) 183
Seek time (read, ms, typical)6 8.0

Reliability
Error rate (non-recoverable, bits read) 1 in 1015
Load/Unload cycles (at 40° C) 600,000
Availability (hrs/day x days/wk) 24x7
MTBF1 (M hours) 2.0
Annualized Failure Rate1 (AFR) 0.44%

Acoustics
Idle (Bels, typical) 2.9

Power
Requirement +5 VDC (+/-5%)
+12VDC (+10%/-8%)

Startup current (A, max) 1.2 (+5V), 2.0 (+12V)
Read/write (W) 10.9
Idle (W, avg) 7.6
Unload idle (W) 6.2

Physical size
z-height (mm, max) 26.1
Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147
Weight (g, typical) 690

Environmental (operating)
Ambient temperature 5o to 60o C
Shock (half-sine wave 2 ms, G) 70
Vibration (G RMS, 5 to 500 Hz) 0.67 (XYZ)

Environmental (non-operating)
Ambient temperature -40o to 70o C
Shock (half-sine wave, 1ms, G) 300
Vibration (G RMS, 5 to 500 Hz) 1.04 (XYZ)

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