Page 10 : Our Verdict & Award, Lowest Prices, Specifications
Our Verdict & Award
This is our first review of a helium-filled hard disk drive, and we are very impressed. Even from its specifications alone, we can already see a significant reduction in power consumption and noise levels. These are not minor either.
The helium-filled 8TB WD Gold (WD8002FRYZ) datacenter drive boasts 22% lower power consumption, and is half as loud as the air-filled WD Gold models when they are not seeking. We confirmed these claims during our tests, noting how quiet it was, and how it ran almost as cool as 5400 RPM hard disk drives despite packing 3-4 additional platters than the drives we compared it to!
The 8TB WD Gold datacenter drive achieves its tremendous storage capacity, not by increasing areal density, but by packing 2 additional platters. This is only made possible by filling it with helium, reducing turbulence and friction.
While this allows Western Digital to quickly increase storage capacity, it doesn’t help with its performance. That’s why it was slightly slower than top-of-the-line desktop drives like the 6TB Western Digital Black. That doesn’t meant that the 8TB WD Gold datacenter drive is a slow drive. Far from it. It is a fast drive, but not in the way we expect.
The 8TB WD Gold datacenter drive is optimised for datacenter applications. Hence, it features the HGST media caching technology which trades sequential write performance for a big boost in its small random write performance. This is not a very useful trade-off for desktop users, but a big boon to servers that handle hundreds or thousands of users.
The 8TB WD Gold datacenter drive would be overkill for home or office users, even for NAS applications. But there is no doubt that it would offer a big boost in performance and a tremendous reduction in TCO (Total Cost of Ownership), considering its significantly lower power consumption and thermal output per TB of storage. In light of that, we think the WD Gold 8TB datacenter drive deserves no less than our Reviewer’s Choice Award! Congratulations, Western Digital!
The 8TB WD Gold Specifications
|Specifications||WD Gold 8TB Datacenter Hard Disk Drive|
|Form Factor||3.5 inch|
|Platter And Head Count||7 Platters with 14 Read/Write Heads|
|Advanced Format Technology||Yes (512-byte emulation)|
|Available Sectors||15,628,053,168 (512-byte emulation) sectors
1,953,506,646 (4,096-byte physical) sectors
|Formatted Capacity||8,001,563,222,016 bytes|
|Native Command Queuing||Yes|
|Interface||SATA 6 Gb/s|
|Spindle Speed||7200 RPM|
|Sustained read / write performance||205 MB/s (maximum)|
|Cache||128 MB DDR3-1600 SDRAM|
|Average Power Consumption||Sequential read : 7.2 W
Sequential write : 7.0 W
Random read / write : 7.4 W
Idle : 5.1 W
|Temperature Rating||5 to 60 °C (Operating)
-40 to 70 °C (Non-Operating)
|Shock Rating||Operating : 70 G (half-sine wave, 2 ms)
Non-Operating : 300 G (half-sine wave, 1 ms) / 150 G (half-sine wave, 11 ms)
|Acoustics||Seek : 36 dBA (average)
Idle : 20 dBA
|Load / Unload Cycles||600,000|
|Non-Recoverable Read Errors per Bits Read||<1 in 1015|
|MTBF (Maximum Time Before Failure)||2,500,000 hours|
|AFR (Average Failure Rate)||0.35%|
|Physical Dimensions||101.6 mm (4.0") wide x 147.0 mm (5.787") long x 26.1 mm (1.028") high|
|Weight||650 g (1.43 lbs)|
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