Specifications and Feature Set Comparison

Prior to getting into the performance evaluation, we will take a look at the specifications of the WD Red Pro 6 TB and see how it compares against the other NAS-specific hard drives that we have looked at before.

The WD Red Pro 6 TB sports a SATA III (6 Gbps) interface. As is customary for the high capacity drives in this market segment, it can only emulate 512-byte sectors (natively 4K). The interesting aspect is the presence of a 128 MB cache similar to the Seagate and HGST drives, and unlike the WD Red. The obvious selling point for its price target is the 7200 RPM speed, which should easily give it the lead in most benchmarks over the WD Red. The other aspects (such as the URE ratings, MTBF, warranty etc.) are as expected for a drive targeting SMBs and SMEs. The table below presents the data for the drive against the others in our evaluation database.

Comparative HDD Specifications
Aspect
Model Number WD6001FFWX WD6001FFWX
Interface SATA 6 Gbps SATA 6 Gbps
Sector Size / AF 512E 512E
Rotational Speed 7200 RPM 7200 RPM
Cache 128 MB 128 MB
Rated Load / Unload Cycles 600 K 600 K
Non-Recoverable Read Errors / Bits Read < 1 in 1014 < 1 in 1014
MTBF 1 M 1 M
Rated Workload ~ 180 TB/yr ~ 180 TB/yr
Operating Temperature Range 5 to 60 C 5 to 60 C
Acoustics (Seek Average - dBA) 34 dBA 34 dBA
Physical Parameters 14.7 x 10.16 x 2.61 cm; 750 g 14.7 x 10.16 x 2.61 cm; 750 g
Warranty 5 years 5 years
Price (in USD, as-on-date) $299 $299

A high level overview of the various supported SATA features is provided by HD Tune Pro.

We get a better idea of the supported features using FinalWire's AIDA64 system report. The table below summarizes the extra information generated by AIDA64 (that is not already provided by HD Tune Pro).

Comparative HDD Features
Aspect
DMA Setup Auto-Activate Supported; Disabled Supported; Disabled
Extended Power Conditions Supported; Disabled Supported; Disabled
Free-Fall Control Not Supported Not Supported
General Purpose Logging Supported; Enabled Supported; Enabled
In-Order Data Delivery Not Supported Not Supported
NCQ Priority Information Supported Supported
Phy Event Counters Supported Supported
Release Interrupt Not Supported Not Supported
Sense Data Reporting Not Supported Not Supported
Software Settings Preservation Supported; Enabled Supported; Enabled
Streaming Not Supported Not Supported
Tagged Command Queuing Not Supported Not Supported
Introduction and Testbed Setup Performance - Raw Drives
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  • Impulses - Tuesday, September 8, 2015 - link

    My 75GB 75GXP failed slowly, I dunno if it was related to the main source of failure everyone was seeing... It made for some interesting surprises, like waking up to an empty Desktop because the directory had been mysteriously renamed Desotop (amazingly everything within was intact).
  • MHz Tweaker - Wednesday, September 9, 2015 - link

    Yes, I think I remember those GXP-Deathstars "click click clickety click"
  • Samus - Monday, September 7, 2015 - link

    I prefer HGST drives, but really just the older ones like the 2TB and 3TB 5400RPM Deskstar Coolspins. They were nearly as fast as most 7200RPM drives of the day.

    The He6 is just too expensive, although they seem to be very reliable and that was the real concern at the beginning for that technology.

    And until recently, Hitachi/HGST didn't have a 6TB non-Helium model available. They are clearly behind Seagate and WD on density, but ahead of them on reliability. Sometimes keeping it old-school is the best path. Look at Mazda with Skyactive. No turbo charging, no fancy dual-clutch or CVT transmissions, just a modern lightweight engine with as much friction removed as possible mated to a tweaked slushbox and it still beats every single competitor in fuel economy, aside from Hybrids, while also being among the few vehicles manufactures that have not had transmission or engine related recalls.
  • Adul - Tuesday, September 8, 2015 - link

    Not to mention taht they are great to drive cards :)
  • Adul - Tuesday, September 8, 2015 - link

    Cars! should not reply from phone.
  • yeeeeman - Monday, September 7, 2015 - link

    When do these ancient objects go extinct? And why didn't you include at least an ssd for comparison?
  • damianrobertjones - Monday, September 7, 2015 - link

    When you and I can afford to buy a 6TB SSD version. That probably means when we're dead.
  • FunBunny2 - Monday, September 7, 2015 - link

    I wonder if it's possible to stuff 6TB of NAND, at any node size, into 2.5" form factor?
  • KateH - Monday, September 7, 2015 - link

    Yes.

    http://arstechnica.com/gadgets/2015/08/samsung-unv...
  • FunBunny2 - Tuesday, September 8, 2015 - link

    Zoweeeeee.

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