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Subject: Storage
Manufacturer: Western Digital
Tagged: wdc, WD, Red Pro, red, hdd, 6tb, 4TB

Introduction and Specs

Introduction:

*** NOTE ***

In the preparation for this review, we noted abnormal behavior with the 6TB Red. After coordination with Western Digital, they replicated our results and will be issuing a firmware to correct the issue. We are publishing this piece as-is, with caveats added as appropriate. We will revisit this piece with an additional update once we have retested the 6TB Red on the updated firmware / configuration. More information / detail is available in our related news post on this matter.

*** END NOTE ***

Last year we covered the benefits of TLER enabled drives, and the potential for drive errors in a RAID can lead to the potential loss of entire arrays. Western Digital solved this problem by their introduction of the WD Red series. That series was since incrementally updated to include a 4TB capacity, and other Western Digital lines were also scaled up to 4TB capacities.

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This week the Red line was updated to include both 5TB and 6TB models, sporting 1.2TB per platter. Performance is expected to be slightly improved over the older / smaller capacities of the Red. The upgraded line will use an improved 'NASware 3.0' firmware, which makes improvements to Western Digital's software based vibration compensation. These improvements mean WD can now support up to 8 Reds in a single chassis (up from 5 with NASware 2.0).

Also announced was the new Red Pro line, available in capacities up to 4TB. The Red Pro is just as it sounds - a 'Pro' version of the Red. This model borrows more features from WD's enterprise line, making it very similar to an SE series HDD. Imagine a Red, but at 7200RPM and more aggressive seek times. The Red Pro also borrows the enterprise-grade 5-year warranty and is supported in chassis up to 16 bays, thanks to built-in hardware vibration compensation. When all is said and done, the Red Pro is basically a WD SE with firmware tweaked for NAS workloads.

As a recap of what can potentially happen if you have a large RAID with 'normal' consumer grade HDD's (and by consumer grade I mean those without any form of Time Limited Error Recovery, or TLER for short):

  • Array starts off operating as normal, but drive 3 has a bad sector that cropped up a few months back. This has gone unnoticed because the bad sector was part of a rarely accessed file.
  • During operation, drive 1 encounters a new bad sector.
  • Since drive 1 is a consumer drive it goes into a retry loop, repeatedly attempting to read and correct the bad sector.
  • The RAID controller exceeds its timeout threshold waiting on drive 1 and marks it offline.
  • Array is now in degraded status with drive 1 marked as failed.
  • User replaces drive 1. RAID controller initiates rebuild using parity data from the other drives.
  • During rebuild, RAID controller encounters the bad sector on drive 3.
  • Since drive 3 is a consumer drive it goes into a retry loop, repeatedly attempting to read and correct the bad sector.
  • The RAID controller exceeds its timeout threshold waiting on drive 3 and marks it offline.
  • Rebuild fails.
  • Blamo, your data is now (mostly) inaccessible.

I went into much further detail on this back in the intro to the WD 3TB Red piece, but the short of it is that you absolutely should use a HDD intended for RAID when building one.

Continue reading our review of the new WD 6TB Red and 4TB Red Pro!!

Shuttle's DS81 comes bareboned but offers a lot of choice

Subject: Systems | July 21, 2014 - 03:53 PM |
Tagged: shuttle, htpc, SFF, DS81, barebones

The Shuttle DS81 ships with an H81 motherboard, an external 90 W power adapter and the 190 x 165 x 43mm case of course.  That means you have your choice of installed Linux or Windows and any combination of 65W or lower Haswell processor, memory and storage device to add to the ~$200 enclosure.  For outputs it provides HDMI and two DisplayPorts which means it can theoretically support 4K video, a pair of both USB 2.0 and 3.0 ports and two LAN ports as WiFi is optional.  While it has only headphone out for audio, the onboard codec is capable of outputting digital sound through DP or HDMI which would be the preference of many users.  Check out MadShrimps full review here.

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"The Slim PC chassis from been reincarnated in the shape of the DS81 which supports the latest Haswell processors with a TDP up to 65W and supports 4K video output thanks to the DirectX 11.1 IGP. The DS81 chassis features a 1.3-liter slim design with a thickness of only 43mm, so it is suitable for many commercial applications; a VESA mount is also included as a bundle in order to mount the device behind the monitor."

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Source: MadShrimps

Turtle Beach goes long with the Ear Force Z SEVEN Gaming Headset

Subject: General Tech | July 21, 2014 - 05:39 PM |
Tagged: turtle beach, gaming headset, Ear Force Z SEVEN, audio

At some time in the very near future, if this naming trend does not reverse itself, the wraparound portion of headphones will have to be enlarged to be able to display the entire brand name legibly.  The latest lengthy moniker is the Turtle Beach Ear Force Z SEVEN Gaming Headset with removable unidirectional microphone and Audio Control Unit.  The mic is self explanatory but the ACU is an external sound card with voice morphing and headphone equalizer presets and has outputs for PC, Mac and Xbox; it is not a booster amp.  Overall Legit Reviews found this headset to be a great generalist but not as good for specific usage such as taking advantage of positional in a game.  Read on to see if they peak your interest.

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"Turtle Beach is perhaps a name better known amongst console gamers since you can easily find their Ear Force lineup of headsets somewhere close to where the boxed console games are in certain stores. Most Turtle Beach Ear Force headsets are compatible with computers or any electronic device with a 3.5 mm jack nonetheless because most gamers or even most people make due with one set of headphones for all their devices. The Turtle Beach Z SEVEN we have for review is actually part of a much larger family of SEVEN headsets. Read on to find out more about it!"

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Audio Corner