Western Digital has this week introduced its new 10TB datacenter-class helium-filled WD Gold hard drive. This drive, according to WD, boasts higher performance compared to its predecessor combined with lower power consumption. The new WD Gold 10 TB will be Western Digital’s flagship HDD for data-centers and will compete against hard drives of similar capacity from Seagate and HGST.

The WD Gold 10 TB drive (WD101KRYZ) shares the hermetically-sealed 3.5” platform with the WD Gold 8 TB, which was introduced earlier this year. The new drive is based on multiple PMR (perpendicular magnetic recording) platters, features a 7200 RPM spindle speed, a double-size 256 MB DRAM cache and is based on the SATA 6 Gbps interface (right now, WD does not offer Gold HDDs with SAS interface). Just like the other WD Gold HDDs, the new 10 TB model was designed for a variety of server applications, including small to medium-scale machines, as well as rack-mount data center servers and storage enclosures. The drive is promoted as being optimized for RAID environments and supports enhanced RAFF technology that protects against vibration (by monitoring linear and rotational vibration in real time) as well as head positioning system with two actuators, which increases positional accuracy. In addition, the WD Gold 10 TB also supports time-limited error recovery technology (TLER), which prevents drive fallout caused by extended HDD error recovery processes.

Comparison of Western Digital's WD Gold HDDs
  WD101KRYZ WD8002FRYZ WD6002FRYZ WD4002FRYZ
Capacity 10 TB 8 TB 6 TB 4 TB
RPM 7200 RPM
Interface SATA 6 Gbps
DRAM Cache 256 MB 128 MB
NAND Cache Unknown No Yes Unknown
Helium-Filling Yes No
Data Transfer Rate (host to/from drive) 249 MB/s 205 MB/s 226 MB/s 201 MB/s
MTBF 2.5 million
Rated Workload (Drive Writes Per Day) 0.151 0.189 0.251 0.377
Equivalent of 550 TB of Writes per Year
Acoustics (Seek) - 36 dBA
Power Consumption Sequential read 7.1 W 7.2 W 9.3 W 9 W
Sequential write 6.7 W 7 W 8.9 W 8.7 W
Random read/write 6.8 W 7.4 W 9.1 W 8.8 W
Idle 5 W 5.1 W 7.1 W 7 W
Warranty 5 Years
Price $847.99 $595.99 $406.99 $270.99
$0.084 per GB $0.074 per GB $0.067 per GB $0.067 per GB
11.79 GB per $ 13.42 GB per $ 14.74GB per $ 14.76 GB per $

The WD Gold 8 TB model released earlier this year already featured a number of performance and energy efficiency optimizations and the WD Gold 10 TB hard drive is designed to improve even further. The 10 TB drive offers a 249 MB/s sustained sequential transfer rate (up from 205 MB/s in the case of the 8 TB model). Moreover, maximum power consumption of the WD Gold 10 TB is 7.1 W (down from 7.4 W for the 8 TB model, and significantly less than 8.6 W consumed by HGST’s Ultrastar He10 around the same ballpark as the 6.8W operating power number for the HGST’s Ultrastar He10 SATA model). Western Digital does not reveal many details about how it managed to improve performance and energy efficiency, but it is logical to assume that increased areal density, an enlarged cache, and further tweaks of electronics are responsible. As for reliability, just like other WD Gold series HDDs, the new one is rated for 2.5 million hours MTBF and comes with a 550TB of writes per year rated workload, which at the rated write speed gives 100 minutes of full sequential writes per day.

Western Digital’s Gold 10 TB hard drives are currently available at select U.S. distributors, resellers and will shortly be sold in the company’s online store. The HDD costs $847.99 when bought from CDW.

Source: Western Digital

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  • Black Obsidian - Thursday, August 4, 2016 - link

    Not really, especially for nearline drives. Regardless of the interface it's the same physical drive, and array logic plus ample spares means that even if there is a reliability difference between SATA and SAS, it doesn't matter.

    On an enterprise scale, HDDs are cattle, not pets.
    Reply
  • diehardmacfan - Thursday, August 4, 2016 - link

    Proper support for HA controllers absolutely matters. Reply
  • mbarr - Thursday, August 4, 2016 - link

    This new WD 10TB HDD has a data transfer rate of 249MB/s. The new Seagate Nytro XF1230 SSDs also reviewed on August 4 2016 have seq read of 560MB/s and seq write of 290MB/s to 500MB/s which is only twice as fast.

    Aren't SSDs 100s of times faster than HDDs? Am I missing something here?
    Reply
  • pedjache - Thursday, August 4, 2016 - link

    You're missing the fact that seq r/w is just one of the ways of defining drive speed. Reply
  • Gigaplex - Thursday, August 4, 2016 - link

    SSDs are 100s of times faster at seek/latency. Reply
  • flyingpants1 - Friday, August 5, 2016 - link

    Actually, SSD could easily do 2000MB/s or way more (and some do). The industry just agreed to stop at SATA3 for some strange reason. Reply
  • damianrobertjones - Friday, August 5, 2016 - link

    People are buying so why update. When the sales start to fall they'll start to improve things. Max $$$$$ Reply
  • bill.rookard - Friday, August 5, 2016 - link

    SSD's are faster in several ways. Hundreds of times faster? No, hardly, but significantly faster in many regards.

    1) Outright transfer speeds. HDDs can transfer (ideally as shown by the drives above) at up to 250MB/sec in ideal situations. Your average consumer SATA based SSD can hit 500MB/sec under ideal circumstances. This however is the limit of the SATA 3 interface. Switching to a PCIe based NVMe protocol SSD raises that to upwards of 3GB/sec. The interface is the limit on the SSD at this point.

    2) Random read/write speeds. The above limits are of sequential reads/writes. Random read/write is when the drive has to go all over the place to get a bunch of little files. This is where the HDD tanks in comparison with SSDs as the write head has to move from one location to a different location, and then wait for the platter to get to the correct rotational point to read the data. Yes, it's fast - 7200rpm is pretty quick, but compared to a SSD which has NO physical positioning to do it takes a finite amount of time. So - the SSD absolutely beats the drive in your typical tasks such as... loading your OS (lots of little reads), reading a video file (2-8 times as fast), loading programs. You get the idea.

    3) Longevity. Because it has no moving parts, assuming it doesn't have any electrical damage it will also outlast the typical HDD. Assuming you write 20GB of files per day under what would be 'normal' usage (which is actually a bit on the high side), the typical SSD with a 300TBW (300 terabytes written) capacity means the drive would last (300TB / 20GB = 15,000 days/365 days = 41 years. I think we all know that finding a HDD which is still functional after 41 years is a lost cause.
    Reply
  • bigboxes - Saturday, August 6, 2016 - link

    You know that SSDs will fail way before that. Hope you have your data backed up. Reply
  • WackyWRZ - Friday, August 12, 2016 - link

    You're missing a Nytro drive that holds 10TB and missing the price for the Nytro drives.

    People don't buy drives that hold 10TB because they need SSD speeds...
    Reply

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