WESTERN DIGITAL Hard Drive - WD Gold WD221KRYZ - 22TB - SATA 6Gb/s - 3.5in - 7200rpm - 512MB Buffer

WD Gold™ enterprise-class SATA hard drives offer a scalable storage portfolio from 1TB to 22TB, with OptiNAND™ available in 20TB and 22TB models. Designed for data centers and storage systems, these drives provide high reliability with up to 2.5 million hours MTBF, vibration protection electronics, HelioSeal technology in 12TB and larger capacities for lower power consumption, and broad compatibility with major enterprise operating systems.

Advantages

WD Gold™ delivers flexibility to configure storage according to business needs across a wide range of capacities and is engineered for heavy application workloads up to 550TB per year. The drives include enhanced reliability measures, real-time correction for linear and rotational vibrations, and features that help protect data integrity under enterprise conditions. High-capacity models incorporate OptiNAND™ and certain models include ArmorCache™ for improved power-loss protection and performance modes.

Key specifications

• Capacities: 1TB–22TB (OptiNAND™ in 20TB and 22TB)
• MTBF: up to 2.5 million hours
• Workload rating: up to 550TB/year
• Interface: SATA (enterprise-class)
• HelioSeal technology: present for 12TB and above
• Vibration protection: enhanced real-time linear and rotational vibration correction
• ArmorCache™: enterprise power-loss protection and performance enhancement (22TB model)

How to use

Install WD Gold™ drives into compatible enterprise storage enclosures or servers following the system manufacturer's installation guidelines. Configure drive settings and RAID or system-level redundancy as required for your environment, enable write-cache modes according to your performance and protection needs, and ensure firmware and drivers are up to date for compatibility with your operating system.

Recommendations

Choose capacity and configuration based on expected annual workload and redundancy requirements; use HelioSeal-equipped models for lower power draw in large-capacity deployments, and select the 22TB ArmorCache™ model when additional power-loss protection and cache-related performance are required.