WD Internal HDD Overview
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1Description
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2Enterprise-Class Storage
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3Vibration Protection
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4Dynamic Fly-Height & Dual-Stage Actuator Technology
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5Compatibility Testing
The 22TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD from WD is an enterprise-grade drive designed for demanding 24x7 data storage solutions. Ultrastar drives are built to be durable, using CMR technology and featuring up to an error tolerance of <1 in 1015, a MTBF rating of 2 million hours, and an Annualized Failure Rate (AFR) of 0.44%, depending on the model. Endurance aside, this drive offer fast 7200 rpm performance with 512MB of cache and data transfer speeds of up to 600 MB/s.
Designed for data centers and demanding environments, WD Ultrastar drives have a MTBF rating of at least two million hours and are built for yearly (24x7x365) operation.
WD Ultrastar drives are built with Enhanced Rotational Safeguard (RVS) technology, which monitors and corrects linear and rotational vibrations in real-time for improved performance.
Dynamic Fly-Height & Dual-Stage Actuator Technology
Dynamic Fly-Height technology utilizes real-time read/write head adjustments for consistent performance, reduced errors, and optimized reliability. Dual-Stage Actuator technology improves positional accuracy over the data track. The primary actuator provides course displacement using conventional methods, whereas the secondary actuator uses piezoelectric motion to fine-tune the head positioning to a higher degree of accuracy.
WD Ultrastar hard drives are extensively tested with a variety of storage systems, SATA controllers, and host bus adapters to ensure they are a simple plug-and-play storage solution.
In the Box
- WD 22TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD (OEM Packaging)
- Limited 5-Year Manufacturer Warranty
Table of Contents
- Description
- Enterprise-Class Storage
- Vibration Protection
- Dynamic Fly-Height & Dual-Stage Actuator Technology
- Compatibility Testing
WD Internal HDD Specs
Storage Capacity |
22 TB SATA III (6 Gb/s) HDD (7200 rpm) |
Read Speed |
Random: 212 IOPS |
Write Speed |
Random: 565 IOPS |
Buffer |
512 MB |
Pre-Format |
None |
Latency |
4.1 ms |
HDD Specs
Areal Density |
1109 Gb/in² |
Disk Sector Format |
512e, Advanced Format (4Kn) |
Reliability / Data Integrity
Annualized Failure Rate (AFR) |
0.35 % |
Encryption |
None |
Load/Unload Cycles |
600,000 |
Mean Time Between Failures (MTBF) |
2.5 Million Hours |
Environmental
Operating Temperature |
37 to 92°F / 5 to 60°C |
Operating Shock |
40 G / 2.0 ms |
Operating Vibration |
0.7 G / 5 to 500 Hz |
General
Dimensions |
5.8 x 4 x 1" / 147 x 101.6 x 26.1 mm |
Weight |
1.5 lb / 670 g |
Packaging Info
Package Weight |
1.65 lb |
Box Dimensions (LxWxH) |
9.2 x 6.3 x 2.9" |
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