WD WD221KRYZ | 22TB | SATA 6Gb/s | 7200RPM | 512MB | 3.5" Enterprise Hard Drive WD WD221KRYZ | 22TB | SATA 6Gb/s | 7200RPM | 512MB | 3.5" Enterprise Hard Drive
WD WD221KRYZ | 22TB | SATA 6Gb/s | 7200RPM | 512MB | 3.5" Enterprise Hard Drive

Western Digital

Western Digital WD221KRYZ | 22TB | SATA 6Gb/s | 7200RPM | 512MB | 3.5" Enterprise Hard Drive

$1,079.95

Brand New, Factory Sealed | Backorder: Ships in ~5 Business Days | Full Manufacturer Warranty

The WD221KRYZ is a 22TB WD Gold Enterprise Class SATA hard drive featuring a 6Gb/s interface, 7200RPM spindle speed, and a 512MB cache in a 3.5-inch helium-sealed form factor. Built for data center and hyperscale deployments, it is ideal for enterprise storage arrays, RAID configurations, and mission-critical 24/7 workloads. Compatible with Dell PowerEdge, HP ProLiant, and Supermicro servers, host bus adapters, and enterprise storage systems on any SATA 6Gb/s controller. OptiNAND and ArmorCache technologies deliver up to 291MB/s sustained transfer, a 550TB/year workload rating, and 2.5M hours MTBF with enterprise power-loss protection.

All products are sold as new in original retail or OEM packaging unless otherwise specified. This is a backorder item that typically ships within approximately 5 business days of order, and includes the full Western Digital manufacturer warranty. Bulk inquiries welcome.
Specifications
  • Manufacturer: Western Digital
  • Model: WD221KRYZ (WD Gold)
  • Capacity: 22TB
  • Interface: SATA 6Gb/s
  • RPM: 7200
  • Cache: 512MB
  • Form Factor: 3.5-inch
  • Recording: CMR, 512e
  • Drive Technology: Helium (HelioSeal)
  • Sustained Transfer: up to 291MB/s
  • Workload Rating: 550TB/year
  • MTBF: 2.5 million hours
  • Warranty: 5-year limited manufacturer warranty
Product Features
  • OptiNAND technology for higher capacity and reliability
  • ArmorCache enterprise power-loss protection
  • HelioSeal helium-sealed platform for low power and heat
  • Dual Rotational Vibration Safeguard (RVS) sensors
  • CMR recording for consistent RAID performance
  • 2.5M hour MTBF with 550TB/year workload rating
Compatibility
  • Dell PowerEdge servers
  • HP ProLiant servers
  • Supermicro platforms
  • Enterprise HBAs and RAID controllers
  • SATA 6Gb/s data center storage systems
Shipping & Returns
  • Free Shipping: We currently offer free Economy Shipping within the continental U.S. with no minimum order required. Expedited shipping is available at standard carrier rates.
  • Same-Day Shipping: Order placed before 2PM PST will ship the same day. Orders received after this time will ship the following business day.
  • Hassle-Free Returns: If you're not completely satisfied with your purchase, simply return it within 10 days for a hassle-free refund or exchange.

22TB SATA 6Gb/s 7200RPM 512MB Cache OptiNAND Full Manufacturer Warranty

WD Gold 22TB — OptiNAND enterprise storage

The WD221KRYZ is Western Digital's WD Gold 22TB SATA drive, engineered for heavy, continuous read-write workloads in enterprise and data center systems. OptiNAND and ArmorCache technologies boost capacity, reliability, and power-loss protection, while a 2.5M hour MTBF and 550TB/year workload rating make it a dependable RAID building block.

22TB Enterprise Capacity

Twenty-two terabytes per bay maximizes rack density while keeping per-TB cost low for hyperscale arrays.

OptiNAND + ArmorCache

OptiNAND boosts areal density and reliability while ArmorCache delivers enterprise power-loss protection in write-cache modes.

550TB/yr Workload

Rated for a 550TB/year workload and 2.5 million hour MTBF with up to 291MB/s sustained transfer for demanding 24/7 duty.

Broad Server Support

Validated across Dell PowerEdge, HP ProLiant, and Supermicro platforms on any SATA 6Gb/s HBA or RAID controller.

Sealed OEM Stock

Brand new, factory sealed, backed by the full 5-year Western Digital limited manufacturer warranty.

Frequently Asked Questions

Frequently asked questions about Enterprise Hard Drives (HDD) and Solid-State Drives (SSD), including what they are, how they are used, performance consideration and tips for choosing the right solution.

1. What are enterprise hard drives and SSDs?

Enterprise hard drives and SSDs are high-performance, high-reliability storage solutions designed for use in data centers and business-critical applications.
2. Are enterprise hard drives reliable?

Yes, enterprise hard drives are designed to be highly reliable and durable, suitable for data centers and enterprise environments. They typically feature enhanced error correction, vibration resistance, and longer lifespans compared to consumer drives. Enterprise drives are built to handle continuous 24×7 operation, making them a smart choice for critical data storage needs.
3. What is the difference between NAS and enterprise hard drives?

Network-attached storage (NAS) and enterprise hard drives differ primarily in their intended use and design features. NAS drives are optimized for lower power consumption, quieter operation, and ideal for small-to-medium business or home environments. Enterprise drives, which are built for higher performance, reliability, and endurance—are designed to handle 24×7 operation in demanding data center and enterprise settings.
4. What factors should be considered when selecting an enterprise hard drive for a specific application or workload?

To choose an enterprise hard drive for a specific application or workload, keep the following factors in mind:

  • Performance requirements, such as read/write speeds and IOPS are crucial, especially for data-intensive applications.
  • Capacity needs must align with the storage demands of your workload. 
  • Reliability and durability are essential, as enterprise drives should withstand continuous 24×7 operation.
  • Compatibility with your existing hardware and RAID configurations is also important.
  • Power consumption and cooling requirements should be considered to guarantee efficient operation within your data center environment.
  • Cost and warranty terms should align with your budget and long-term maintenance plans.
5. How does an enterprise hard drive improve data reliability and integrity?

Enterprise hard drives improve data reliability and integrity through several advanced features. They incorporate enhanced error correction codes (ECC) that detect and correct data errors, ensuring data remains accurate and intact. These drives are also designed with improved mechanical structures to minimize vibrations, which can cause read/write errors. Optimized for RAID configurations, they prevent data loss and promote redundancy, further safeguarding data. Additionally, enterprise drives benefit from advanced firmware that includes regular updates and sophisticated algorithms to manage data more effectively.

6. What are the key differences between enterprise hard drives and consumer-grade hard drives?

Enterprise hard drives differ from consumer-grade hard drives in several key areas:

  1. Reliability: Enterprise drives are designed for continuous 24×7 operation with a higher mean time between failures (MTBF).
  2. Performance: The enterprise hard drives offer faster data transfer rates and lower latency.
  3. Durability: They offer enhanced error correction, vibration resistance, and robust construction.
  4. Features: They include advanced features like RAID optimization and better firmware.
  5. Warranty: Enterprise hard drives come with longer warranties compared to consumer drives.
7. How does an enterprise hard drive improve data reliability and integrity?

Enterprise hard drives improve data reliability and integrity through several advanced features. They incorporate enhanced error correction codes (ECC) that detect and correct data errors, ensuring data remains accurate and intact. These drives are also designed with improved mechanical structures to minimize vibrations, which can cause read/write errors. Optimized for RAID configurations, they prevent data loss and promote redundancy, further safeguarding data. Additionally, enterprise drives benefit from advanced firmware that includes regular updates and sophisticated algorithms to manage data more effectively.

8. How do enterprise hard drives handle power loss or failures?

Power loss or failures are handled through several robust mechanisms. They often include features like power loss protection (PLP) that use capacitors to provide enough power to complete pending write operations and safely store data in non-volatile memory. Advanced error correction and recovery algorithms also help maintain data integrity. Additionally, enterprise hard drives are designed to restart after power failures quickly and safely, minimizing downtime and data corruption risks. Seagate enterprise drives incorporate such technologies to ensure data reliability and system resilience in power-loss scenarios.