Western Digital
Western Digital WD4001FYYG 4TB SAS HDD Enterprise
Unleash Enterprise-Class Storage PerformanceIntroducing the Western Digital WD Re WD4001FYYG, a 4TB hard drive engineered for demanding datacenter environments. Offering a robust design and unparalleled reliability, this drive is built to handle heavy workloads, ensuring your data is safe and acc...
$165.00*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.
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Overview
Unleash Enterprise-Class Storage Performance
Introducing the Western Digital WD Re WD4001FYYG, a 4TB hard drive engineered for demanding datacenter environments. Offering a robust design and unparalleled reliability, this drive is built to handle heavy workloads, ensuring your data is safe and accessible around the clock.
Specifications
- Brand: Western Digital
- Model: WD4001FYYG
- Capacity: 4TB
- Interface: SAS 6Gb/s
- Rotational Speed: 7.2K RPM
- Cache: 32MB
- Form Factor: 3.5"
Key Features
Best fit applications: High performance computing, high reliability cloud storage, RAID arrays, high availability external storage arrays, data warehousing and mining
Designed for heavy application workloads: 550TB per year at 24x7 operation
1.4 million hours MTBF and .0063 AFR
RAID specific, time limited error recovery (TLER)
Thermal extended burn in test ensures reliable operation
Specifications
Brand
Western Digital
Model Name
WD4001FYYG
Capacity
4TB
Interface
SAS
Workload Rating
550TB per year (24x7)
MTBF
1.4 million hours
AFR
0.0063
Features
RAID specific TLER, Thermal extended burn in test
Best Fit Applications
High performance computing, high reliability cloud storage, RAID arrays, high availability external storage arrays, data warehousing and mining
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View on Amazon →Pros & Cons
👍 Pros
- Offers a substantial 4TB capacity, ideal for high-performance computing and data warehousing applications.
- Designed for heavy application workloads, supporting up to 550TB per year in 24x7 operation, ensuring robust durability.
- Features an impressive 1.4 million hours MTBF (Mean Time Between Failures), indicating a very high level of reliability for critical systems.
- Includes RAID-specific, time-limited error recovery (TLER), crucial for preventing drive fallout in complex RAID arrays.
- Undergoes a thermal extended burn-in test, ensuring reliable operation even under strenuous conditions.
👎 Cons
- The SAS interface may require specific server hardware, potentially limiting compatibility with standard desktop PCs.
- Designed for enterprise environments and heavy workloads, it might be an over-engineered and more expensive solution for typical home users.
- While 4TB is significant, certain ultra-large-scale data needs may require even higher capacities or a greater number of drives.
- Focuses on reliability and enterprise features, which might mean it prioritizes these over raw speed benchmarks compared to specialized performance drives.
- Specific details on power consumption are not provided, which could be a factor for energy-conscious data centers.
Frequently Asked Questions
What are the primary applications for the Western Digital WD4001FYYG drive?
This drive is best suited for high-performance computing, high-reliability cloud storage, RAID arrays, high-availability external storage arrays, and data warehousing and mining.
What is the annual workload capacity of this HDD?
It is designed to handle heavy application workloads of up to 550TB per year with continuous 24x7 operation.
Does this drive have features beneficial for RAID configurations?
Yes, it includes RAID-specific, time-limited error recovery (TLER), which helps prevent common drive fallout issues in RAID arrays.
What is the Mean Time Between Failures (MTBF) for this drive?
The WD4001FYYG boasts a high reliability with a 1.4 million hours MTBF, indicating robust long-term performance.
How does Western Digital ensure the reliable operation of this drive?
Reliability is ensured through a thermal extended burn-in test, which helps verify stable performance under demanding conditions.
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