Understanding the accumulation of data
Moving cold virtual machine images from system to system, or even across great distances, is one of the main selling points of server virtualization. But it becomes much more difficult to manage movement of virtual machines that are still running, especially outside cluster or across WAN links. When talking about virtual machine mobility, it is important to consider what is being moved, the state it is in, and where it is going.
The next version of Microsoft Windows Server includes integrated data deduplication technology. Microsoft is positioning this as a boon for server virtualization and claims it has very little performance impact. But how exactly does Microsoft’s de-duplication technology work?
VMware’s introduced the “vStorage APIs for Array Integration” (VAAI) in vSphere 4.1, and block-heads like me went nuts. We’ve been trying to integrate storage and servers for decades, and VMware’s APIs finally allowed this to work in truly seamless fashion. But the world of VAAI is a thicket of bizarre naming and puzzling functionality. Some VAAI primitives are ignored or even hidden! Let’s take a look at the complete list.
Many storage challenges focus on the conflict between data management, which demands an ever-smaller unit of management, and storage management, which benefits most from consolidation. Developing data management capability that is both granular enough for applications and scalable enough for storage is one key to the future of storage.
I have been asked to write an article for TechTarget on the subject of selecting a virtual server backup product. I’d like to request input for this piece, and hope we can work together to produce a useful list of recommendations. Note that this isn’t a buyer’s guide like the DCIG effort: There will be no exhaustive lists of functions and features here. Instead, I’m writing about the options available in a more general sense.
I spent this week at the 2011 Microsoft MVP Summit in Redmond, WA. It was an excellent trip, full of great information that I can’t talk about: Microsoft is the only company I have an NDA with! But I can say that no one should count that company out. Although Apple, Google, and Facebook (?!) get all the attention, Microsoft is making some good moves. The Kinnect and Windows Phone 7 show that innovation and creativity is alive and well in Redmond!
Next Thursday I will present my new-for-2011 Storage for Virtual Environments seminar. I hit on an interesting twist while working on the content: Virtual environments pose a challenge but also create an opportunity for storage people. Virtual environments are very demanding of storage features and performance, but we have the necessary tools in our arsenal. We just have to use them!
EMC’s Iomega unit today released the rack-mount storage product we have all been waiting for. The new ix12-300r packs 12 drive bays, scaling from 4 TB all the way to 24 TB, and backs it with quad gigabit iSCSI, redundant power, and everything else the small data center needs.
Ever since Microsoft and Intel declared that the combination of Windows and Nehalem could deliver over a million iSCSI IOPS, I’ve been curious about just how they did it. What black magic could push that many I/Os over a single Ethernet connection? And what was on the other end? Now Intel has revealed all in a whitepaper, and the results are surprising!
“Maximizing Hyper-V iSCSI Performance with Microsoft and Intel” might sound like another “blah blah” marketing piece, but a little birdy tells me that this webcast will drop a bombshell about iSCSI performance.
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?
As a parent, especially a techie one, you never know when a teachable moment is going to appear. Last night, I mentioned that I was testing a new Ruckus access point and enthused about how fast it was. My 12-year-old asked, “why is it so fast?” This led to a wonderful discussion about radio waves, congestion and propagation, and spectrum licensing. Yeah, I’m that kind of dad.
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.
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.
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.
The new Nimbus Data E-Class comes just at the right moment, with 500 TB of capacity, a fully redundant “dual active” controller architecture, massive performance (even InfiniBand), and complete feature set (once VAAI is released).
This week, two blog readers let me know what Google Chrome was warning them of malware on my blog. I dived in and discovered that, indeed, a nasty, obfuscated JavaScript attack had made its way into my site. Although I was disappointed by the lack of clarity about how to fix it, I believe I was able to remove it last night.
Although Clear clearly wants buyers to sign up for monthly service, they also have “secret” on-demand 2-hour, daily, and weekly plans. Here’s how to get online cheap!
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.
For a massive IT company, Dell sure doesn’t get the kind of respect given their competitors. Time and again, I’ll hear the sneers about Dell being little more than a “box shifter” who doesn’t “get” real enterprise IT needs. After a series of acquisitions in storage and networking, Dell is trying to stake a claim as a serious competitor to HP, IBM, Oracle, and the like. But why should anyone take Dell seriously, especially in enterprise storage?