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3.5-INCH HELIUM PLATFORM DATA CENTER HARD DRIVES
Data center decisions are driven by TCO. Higher capacity hard drives play a leading rolein reducing TCO. An 18TB data center HDD provides 29% more capacity in the sameform factor as a 14TB HDD. Higher capacity HDDs enable data centers to lower CAPEX by reducing supporting hardware and system level costs when compared to lower capacitydrives. Helium-sealed, low power, high reliability drives reduce energy and maintenancecosts, contributing to OPEX savings. For example, a data center using 18TB HDDs vs. 14TBHDDs requires 22% fewer racks while consuming 21% less power per TB at idle, resulting insignificant overall TCO reduction for data center environments
Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create anew class of HDDs. 18TB capacity is achieved by combining technologies that improveareal density working together with technologies that improve IOPS and reduce power consumption
With its massive capacity and 2.5M MTBF (projected) reliability rating, the Ultrastar DC HC550 is ideal for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions.
The DC HC550 offers security and encryption options to help protect data fromunauthorized use, including SED models in both SATA & SAS. An optional SED-FIPS will be available in a SAS configuration.
Trust Western Digital and the Ultrastar DC HC550 hard drive to deliver highest capacity, lower TCO and more value to your data center.
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Feature / Function |
Benefits |
Capacity |
18/16TB | Provides 29% more capacity than 14TB helium-drives |
Power Efficiency |
Ultra-low Watts per terabyte (W/TB) | 21% lower idle W/TB than 14TB Ultrastar helium-filled drives |
Performance |
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Reliability |
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Data Security |
Encryption options on both SATA and SAS models | Hardware-based encryption helps protect data from unauthorized use (SED options) |
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SATA Models |
SAS Models |
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Model Number |
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Configuration |
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Interface |
SATA 6Gb/s | SAS 12Gb/s |
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Capacity |
18/16TB | - |
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Format : Sector size (bytes) |
4Kn: 4096 512e: 512 |
4Kn: 4096, 4160, 4224 512e: 512, 520, 528 |
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Areal Density (Gbits/sq. in, max) |
1022 (18TB), 918 (16TB) | |
Performance |
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Data buffer4 (MB) |
512 | - |
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Rotational speed (RPM) |
7200 |
- |
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Latency average (ms) |
4.16 |
- |
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Interface transfer rate (MB/s, max) |
600 |
1200 |
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Sustained transfer rate (MiB/s, max) |
257 (18TB), 250 (16TB) |
- |
Reliability |
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Error rate (non-recoverable bits read) |
1 in 10 |
- |
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Load/Unload cycles (at 40°C) |
600,000 |
- |
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Availability (hrs/day x days/wk) |
24 x 7 |
- |
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MTBF2 (M hours, projected) |
2.5 |
- |
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Annualized Failure Rate (AFR, projected) |
0.35% |
- |
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Workloads |
Up to 550 TB/year |
- |
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Limited warranty (yrs) |
5 |
- |
Acoustics |
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Idle/Operating (Bels, typical) |
2.0/3.6 |
- |
Power |
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Requirement |
+5 VDC, +12VDC |
- |
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Operating6 (W) |
6.5 |
8.8 |
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Idle (W) |
5.6 |
5.8 |
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Power consumption efficiency at idle (W/TB)
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Physical Size |
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z-height (mm) |
26.1 |
- |
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Dimensions (width x depth, mm) |
101.6 (+/-0.25) x 147 |
- |
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Weight (g, max) |
690 |
- |
Environmental (Operating) |
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Ambient temperature |
5° to 60°C |
- |
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Shock (half-sine wave, 2ms, G) |
50 |
- |
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Vibration (G RMS, 5 to 500Hz) |
0.67 (XYZ) |
- |
Environmental (Non-operating) |
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Ambient temperature |
-40° to 70°C |
- |
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Shock (half-sine wave, 2ms, G) |
250 (2ms) |
- |
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Vibration (G RMS, 2 to 200Hz) |
1.04 (XYZ) |
- |
