Western Digital | ASA Computers

Overview

Ultrastar Data Center HC690 hard drives combine field-proven designs with the latest innovative technologies to meet data center needs for increased storage density in existing storage footprint.

Specifications

Features

World's first 11-disk SMR HDD platform
Increases storage density without increasing footprint
Maintains superior reliability of field-proven hardware designs

General

Interface
SATA

SAS

6Gb/s

12Gb/s

Capacity¹

30TB

Format: Sector size (bytes)²
4Kn:

512e:

4096

512

Performance

Data Buffer (MB)³

512

Rotational Speed (RPM)

7200

Sustained Transfer Rate
(MiB/s, typical) / (MB/s, typical)⁴

260/248

Reliability

Error Rate (non-recoverable, bits read)

1 in 10¹⁵

MTBF (M hours)⁵

2.5

Annualized Failure Rate (AFR)⁵

0.35%

Load/Unload Cycles (at 40°C)

600,000

Availability (hrs/day x days/week)

24x7

Limited Warranty (yrs)

5 years

Acoustics

Idle/Operating (Bels, typical)

2.5/3.2

Power

Requirement

+5 VDC, +12VDC

Random Read 4KB QD=8 @MAX IOPS (W)

SATA: 9.4
SAS: 9.7

Idle (W)⁶

SATA: 5.5
SAS: 5.8

Power consumption efficiency at Idle (Watts/TB)

SATA: 0.18
SAS: 0.19

Physical Size

Z-Height (mm)

26.1

Dimensions (width x depth, mm)

101.6 (+/-0.254) x 146.7

Weight (g, max)

670

Environmental (operating)

Ambient Temperature⁷

5° to 60° C

Shock (half-sine wave, 2ms, G)

Vibration-Operating (G RMS, 5 to 500 Hz)

0.7

Environmental (non-operating)

Ambient Temperature⁷

-40° to 70° C

Shock (half-sine wave, G)

200 (2 ms)

Random Vibration (G RMS, 2 to 200 Hz)

1.04

Disclosure

1: One MB is equal to one million bytes, one GB is equal to one billion bytes and one TB equals 1,000GB (one trillion bytes). Actual user capacity may be less due to operating environment.
2: Advanced Format drive: 4K (4096-byte) physical sectors.
3: Portion of buffer capacity used for drive firmware.
4: Based on internal testing; performance may vary depending on host environment, drive capacity, logical block address (LBA), and other factors. 1MiB = 1,048,576 bytes (2²⁰), 1MB = 1,000,000 bytes (10⁶).
5: Projected values. Final MTBF and AFR specifications will be based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions, typical workload and temperature 40C. Derating of MTBF and AFR will occur above these parameters, up to 550TB writes per year and 60°C ambient (65°C device temp). MTBF and AFR ratings do not predict an individual drive's reliability and do not constitute a warranty.
6: Idle specification is based on use of Idle_A.
7: 5°C ambient temperature, 60°C device reported temperature.

Ultrastar DC HC690

Overview

Specifications

Disclosure

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