NAS Hard Drive
Western Digital WD Blue 6 TB (WD60EZAZ)
The Western Digital WD Blue WD60EZAZ is a 6 TB NAS-class hard drive aimed at Consumer, Home. It spins at 5400 RPM with 256 MB of cache and carries a 2-year warranty. On this page you get the complete manufacturer specification, what the drive delivers inside common RAID levels, its measured or rated reliability, and where to buy it — all cross-checked against the datasheet.
| Capacity | 6 TB |
| Rotational speed | 5400 RPM |
| Cache | 256 MB |
| Interface | SATA 6Gb/s |
| MTBF | 1.0M h |
| URE rating | 1 / 1014 |
| Power (idle / load) | 3.4 / 4.6 W |
| Noise (idle / seek) | 25 / 29 dB |
| Workload rating | 55 TB/yr |
| Warranty | 2 years |
| Use cases | ConsumerHome |
Four of these 6 TB drives in RAID 5 give you 18 TB usable and survive one failure; in RAID 6, 12 TB and two failures. Plug your exact drive count and RAID level into the calculator to see usable capacity, efficiency and rebuild risk.
Open in the RAID calculator →This model is not yet in the Backblaze Drive Stats public dataset, so no independent field failure rate is available. The manufacturer specifies an MTBF of 1.0M h and a 55 TB/yr workload rating — both signals that it is built for the sustained duty of a NAS rather than a desktop.
Is the Western Digital WD Blue 6 TB a good NAS drive?
Yes — it is a 5400 RPM NAS-class drive rated for 55 TB/yr of writes per year with a 2-year warranty, which puts it firmly in NAS-duty territory rather than desktop use. Suitability depends on your bay count and RAID level; use the RAID calculator to check usable capacity and rebuild risk for your setup.
How much usable space do I get from 6 TB drives in RAID 5?
With four 6 TB drives, RAID 5 yields 18 TB usable (capacity of three drives) and survives one failure; RAID 6 yields 12 TB and survives two. More drives raise both the usable total and the rebuild risk — the calculator computes the exact figures for any count.
What is the failure rate of the Western Digital WD Blue 6 TB?
This model is not yet in the public Backblaze Drive Stats dataset, so no independent field AFR exists. The manufacturer rates it at an MTBF of 1.0M h and 55 TB/yr annual workload — both NAS-grade figures.