Introduction and Packaging
Last October, Western Digital launched the My Cloud. This device was essentially a network connected version of their My Book line of external hard drives, but with Internet connectivity and apps that could reach back to the My Cloud even when you were away from home. One month later, WD launched the My Cloud EX4, a much beefier version which supported redundant arrays of 4 hard disks, redundant network and power, and a load of other features. There was a rather large gap in features between these two devices, as the only RAID option was more of a small business one. Today Western Digital closed that gap:
The My Cloud EX2 is essentially a My Cloud, but with dual drive bays, and a few additional features. Check out this projected trend below:
You can see there was a definite void in the 2-drive range that needed filling. With those two drives, you get a few options for redundancy or capacity+speed:
All standard RAID options for a 2-bay appliance are met here, though the vast majority of users should opt for the default RAID-1 mirrored set.
Packaging is simple here with only a power adapter, ethernet cable, and quick start guide needed.
Subject: Storage | February 25, 2014 - 08:00 AM | Allyn Malventano
Tagged: western digital, wdc, WD, surveillance, Purple
Western Digital has several lines of hard disks to choose from. You have Greens, Blues, Blacks, enterprise RE's, and even ones named after dinosaurs. Then came a mix of RE and GP in the form of the RE4-GP. Then came the Red series, which carried some more of the enterprisey features from the RE series over into a NAS-tailored drive that sipped power like a Green. Then there was the AV-GP which took a green and tweaked the firmware to better handle multiple video streams being read to and written from the disk simultaneously.
You'd figure they had every possible angle covered, but apparently there was a hole to fill. Turns out the home / small business surveillance market is a bit of a big deal. We're talking about those security systems you see capturing 16 or even 32 video streams simultaneously. Add the fact that these larger systems tend to store their streams to a RAID as opposed to a single disk. What was needed was a drive capable of handling a greater number of simultaneous streams than an AV-GP, while also carrying over the RAID features of the Red, and doing so without driving costs into the enterprise territory of the SE/RE.
Behold the solution:
The WD Purple is an Advanced Format HDD that is optimized for recording up to 32 HD video streams simultaneously:
Writing 32 separate streams to a hard drive would usually lead to the heads thrashing about, trying to keep up with what appears to be random writes. The Purple has much smarter firmware that has been tuned for this specific purpose (seen above maintaining 50% idle time while handling 32 HD streams). While these firmware optimizations would hurt performance in normal consumer use, for heavy surveillance usage, this is likely the closest you can get to SSD performance for this application - without high cost/GB of using solid state as a solution to such a capacity hungry problem.
Speaking of cost/GB, Purple drives are quite reasonable, starting at $89 for 1TB up to $199 for the flagship 4TB capacity.
Press blast after the break:
Subject: Storage | February 17, 2014 - 03:35 PM | Jeremy Hellstrom
Tagged: western digital, Black, 4TB, hdd
There are still many times when having a huge amount of storage at a low price is more important than having the speed of an SSD and the Western Digitial Black family of drives is perfect for those scenarios. This 7200RPM HDD has five 800GB platters and a 64MB cache in the 4TB model TechARP reviewed though you can get smaller models if you so desire. While the drive will not compete against and SSD you can see in the review that this drive tops the other platter based models performance by a noticeable margin. If you need a large amount of space but can't pay around $1.00/GB then don't forget that HDDs are also still evolving.
"The new-generation Western Digital Black family differs from the previous generation by its use of Advanced Format Technology, which allows for greater capacity and throughput. The new Western Digital Black family now consists of five models, which differ only in their storage capacities."
Here are some more Storage reviews from around the web:
- Synology DS214SE @ Kitguru
- QNAP HS-210 Silent and Fanless 2-bay NAS Review @ Madshrimps
- Asustor AS-302T 2-bay NAS @ eTeknix
- Thecus N2310 Network Attached Storage (NAS) Review @HiTech Legion
- Asus SATA Express Hands-on Preview @ Kitguru
- Vantec IDE/SATA and NexStar eSATA to USB 3.0 Adapters Review @HiTech Legion
- Matsunichi 500GB USB 3.0 Portable External Hard Drive Review @ Legit Reviews
- EDGE Memory diskGO Pocket USB 3.0 SSD @ SSD Review
- MyDigitalSSD OTG (On The Go) Pocket SuperSpeed USB 3.0 SSD @ SSD Review
- MyDigitalSSD Super Cache 2 M.2 SSD @ SDD Review
- Mach Xtreme MX-LX 128GB USB3.0 Flash Drive @ eTeknix
- Silicon Power Jewel J10 32GB USB 3.0 Flash Drive @ NikKTech
Subject: Storage, Shows and Expos | January 8, 2014 - 01:20 AM | Allyn Malventano
Tagged: western digital, wdc, WD, router, linksys, CES 2014, CES, 802.11ac
Last night at the PEPCOM Digital Experience, we swung by Western Digital's booth. While there are no new launches at CES, it's always nice to see the full spread all laid out on display:
4TB Green and Black, 1TB Blue, Ultra Slim drives, and of course the Black2.
The other table shifts to backup and external storage, scaling up through the My Cloud to the larger EX4.
My eye was also caught by the behemoth of a router that is the Linksys WRT1900AC!
This beast is way more than an evolution on the old WRT54G. While there are four antennas, the dual band Marvell radios are only 3x3 capable. They can, however, choose among the four antennas to achieve the best possible throughput. The '1900' rating comes from 1300Mbps (5GHz) + 600Mbps (2.4GHz). This router will be Open-WRT capable out of the box, so you can expect the folks like DD-WRT and Tomato to have usable firmware built very shortly after launch, which is expected sometime around April of this year. Let's check out the ports:
Not only is there USB3, but we also have eSATA for even faster connectivity. Throughput to connected storage should be stellar as the on-board CPU will be a 1.2 GHz dual core ARM. Radios and CPU will be cooled by a built-in fan, and Linksys also noted they will be launching an 8 port Gigabit switch in a matching (and stackable) form factor. Open source firmware buff tech note: 128MB Flash, 256MB RAM. MSRP: $299.
Follow all of our coverage of the show at http://pcper.com/ces!
Subject: General Tech | November 21, 2013 - 12:46 PM | Jeremy Hellstrom
Tagged: HAMR, western digital
In the race to increase the areal density of HDDs the tech to work towards is currently Heat Assisted Magnetic Recording as the current shingle technique has helped us increase storage capacity by a small amount but not enough to be the next evolution. Seagate announced their strategy to develop HAMR technology over a year ago but we have yet to see a prototype. Western Digital has just shown off their version of HAMR to a bevvy of journalists, not including The Register, with a working prototype. WD predicts densities reaching 4 terabits per square inch, making an 8TB 2.5" drive a possibility but they have not predicted a release date yet.
think bigger than this
"In September 2012, Seagate boss Steve Luczo gave a presentation using a HAMR technology disk drive. Now, more than a year later, a WD exec has done the same with the company's own HAMR tech drive."
Here is some more Tech News from around the web:
- Nvidia to Intel: 'Which HPC chip brain will win? Let the people decide' @ The Register
- DIY Filament Extruder @ MAKEzine
- Winamp was there? NOT FOR LONG: It's gonna be silenced forever @ The Register
- Automotive Linux Leaves Microsoft and Blackberry QNX in the Dust @ Linux.com
- XBOX ONE ROUNDUP-of-the-ROUNDUPS: Everything YOU need to know @ The Register
Introduction and Features
Today Western Digital launched an important addition to their Personal Cloud Storage NAS family - the My Cloud EX4:
The My Cloud EX4 is Western Digital's answer to the increased demand for larger personal storage devices. When folks look for places to consolidate all of their bulk files, media, system backups, etc, they tend to extend past what is possible with a single hard drive. Here is Western Digital's projection on where personal storage is headed:
Where the My Cloud was a single drive solution, the My Cloud EX4 extends that capability to span up to four 3.5" drives. When it comes to devices that span across several drives, the number 4 is a bit of a sweet spot, as it enables several RAID configurations:
Everything but online capacity expansion (where the user can swap drives one at a time to a larger capacitiy) is suppoted. While WD has stated that feature will be available in a future update, I find it a bit risky to intentionally and repeatedly fail an array by pulling drives and forcing rebuilds. It just makes more sense to back up the data and re-create a fresh array with the new larger drives installed.
Ok, so we've got the groundwork down with a 4-bay NAS device. What remains to be seen is how Western Digital has implemented the feature set. There is a lot to get through here, so let's get to it.
Subject: Storage | October 10, 2013 - 09:21 PM | Allyn Malventano
Tagged: western digital, wdc, WD
Today, Western Digital announced a couple of additions to their small business NAS solutions.
These two new devices, marked in blue on the below spec comparison chart, are an updated version of the previous Sentinel DX4000 and RX4100 models. The new units feature Xeon processors running Windows Server 2012 R2 Essentials. Unlike previous models, the new units can boot from separate 2.5" HDD's (or SSDs) running single or in a RAID-1 mirrored pair, meaning the system does not have to rely on the primary storage array for OS files. The use of the new Windows Server also enables the use of Storage Spaces in lieu of the on-board RAID solution, should the configuration require it.
These are definitely higher end NAS devices which pack a lot of processing punch. As a result, they are a far cry from an ARM powered home NAS in price as well as in performance. We're following these releases closely, and expect additional releases along these lines from Western Digital in the future. I hope to see an 8 bay (or greater) model materialize as well.
Full press blast after the break:
Subject: Storage | October 2, 2013 - 10:42 PM | Allyn Malventano
Tagged: western digital, wdc, WD, My Cloud, cloud storage, cloud
Imagine a device of a similar form factor to the Western Digital My Book, but instead of USB or Thunderbolt connectivity, you had a Gigabit Ethernet connection and a dual core CPU capable of handling large throughputs to your home network. Toss in some back end software and a handfull of remote access apps for various mobile devices, and you have what Western Digital calls the My Cloud:
The concept behind this is to have something similar to DropBox, with some differences. We will be diving further into the My Cloud shortly and will publish a full write-up for your viewing pleasure, but for now it seems to cover every base except for having your shared data available on mobile devices when those devices are offline (with the exception of cached copies, of course).
Full press blast afer the break:
Last July, I went on a bit of a mini-rant about how using a bunch of drives not meant to be in a RAID could potentially lead to loss of the entire array from only a few bad sectors spread across several disks. Western Digital solved this problem by their introduction of the WD Red series. That series capped out at 3TB, and users were pushing for larger storage capacities for their NAS devices. In addition to the need for larger disks came the need for *smaller* disks as well, as there are some manufacturers that wish to create NAS / HTPC type devices that house multiple 2.5" HDD's. One such device is the Drobo Mini - a 4x2.5" device which has not really had a 'proper' NAS storage element available - until now:
Today Western Digital has announced a twofold expansion to their Red Series. First is a 4TB capacity in their 3.5" series, and second is a 2.5" iteration of the Red, available in both 750GB and 1TB capacities.
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, and Western Digital is removing that last excuse for not doing so by introducing a flagship 4TB capacity to the Red Series.
Subject: Storage | September 3, 2013 - 08:00 AM | Allyn Malventano
Tagged: western digital, wdc, WD, red, NAS, hdd
Today Western Digital launched both a 4TB 3.5" Red, as well as a new 2.5" form factor available in both 750GB and 1TB: