WD Gold Enterprise Class SATA HDD – 12TB – WD121KRYZ

• WD Gold Enterprise-Class SATA HDD – 12TB (WD121KRYZ)

The Western Digital Gold Enterprise Class SATA HDD – 12TB – WD121KRYZ is a high-capacity, highly reliable 3.5-inch internal hard disk drive. It is specifically engineered for 24/7 continuous operation and heavy mixed workloads in demanding enterprise and datacenter environments. This drive is a top-tier solution for businesses where data integrity, performance, and uptime are paramount.

Key Features

• Capacity: A substantial 12TB of storage, providing ample space for large datasets in enterprise applications.
• Form Factor: Standard 3.5-inch, compatible with most server, storage array, and workstation bays.
• Interface: SATA III (6 Gb/s), offering a fast and widely compatible connection for high data throughput.
• Rotational Speed (RPM): 7200 RPM, ensuring strong performance and responsiveness for a mechanical drive in multi-user and data-intensive scenarios.
• Cache Size: 256MB, optimizing data flow, reducing latency, and improving overall drive responsiveness.
• Max. Sustained Transfer Rate: Up to 225 MB/s (Host to/from drive sustained), with a buffer to host transfer rate of 6 Gb/s.
• Workload Rating: Up to 550TB per year. This is a crucial enterprise-grade metric, indicating its ability to handle an extremely high volume of data read/write cycles annually – significantly more than consumer-grade drives.

Specifications

• Reliability:
  • MTBF (Mean Time Between Failures): Up to 2.5 million hours. This exceptionally high rating is a hallmark of enterprise drives, emphasizing its suitability for continuous, mission-critical operations where downtime is unacceptable.
  • Load/Unload Cycles: 600,000 cycles.
  • Non-recoverable Read Errors: Less than 1 in 1015 bits read, ensuring very high data integrity for critical business data.
• HelioSeal™ Technology: Utilizes helium-filled technology, which allows for higher capacities by enabling thinner platters and reducing internal friction. This also contributes to lower power consumption and improved reliability.
• Vibration Protection (Enhanced RAFF™ Technology): Incorporates sophisticated monitoring electronics that actively correct linear and rotational vibrations in real time. This is vital for maintaining consistent performance and reliability in dense, multi-drive server racks.
• RAID-specific, Time-Limited Error Recovery (TLER): This feature is crucial for RAID (Redundant Array of Independent Disks) environments. It helps prevent drives from being prematurely dropped from arrays due to extended error recovery processes, which could destabilize the array.
• Dynamic Fly Height Technology: Adjusts each read-write head’s fly height in real time for optimal reliability and read/write performance.
• Dual-Stage Actuator Technology: Provides a high degree of head positioning accuracy. The primary stage offers coarse displacement, while the secondary stage uses piezoelectric motion for fine-tuning.
• Compatibility: Extensively tested and validated for broad compatibility with various OEM storage systems, SATA controllers, and host bus adapters, ensuring seamless integration into complex IT infrastructures.
• Warranty: Backed by a robust 5-year limited warranty, underscoring its enterprise-grade design and intended long-term, continuous operation.
• Power Consumption (Average): Operational: ~7.0W; Idle: ~5.0W.
• Acoustics (Average): Idle Mode: 20 dBA; Seek Mode: 36 dBA.
• Formatted Capacity: 512e (512-byte emulation) user sectors, providing broad compatibility with legacy and modern systems.

Ideal Use Cases

• Enterprise servers: For applications demanding high uptime, consistent performance, and robust data integrity in a 24/7 environment.
• Datacenter environments: Including hyperscale cloud storage, private cloud infrastructure, and data warehousing where reliability and endurance are paramount.
• Enterprise storage systems: Such as large RAID arrays, high-bay Network Attached Storage (NAS) systems, and Storage Area Networks (SANs).
• Data analytics and mining: Where large datasets are constantly accessed, processed, and written.
• High-end, continuous video surveillance systems: That require highly reliable and performant storage for long-term continuous recording and archiving.
• Hybrid cloud and colocation storage: For businesses requiring scalable local or distributed storage.

Full Specifications