Understanding the accumulation of data
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?
Native Format Optimization (NFO) makes a lot of sense, since it addresses a common user error in a practical way, and allows capacity savings to “trickle-down” to backups, e-mail systems, and archives. But wholesale compression and the duplication of primary storage may not be worth much, especially since the cost of disk keeps dropping dramatically.
Later this month, I will be heading to New York for TechTarget’s Storage Decisions conference. I will have two presentations on data reduction and storage virtualization in the main conference track. Registration is free for qualified end-users, and I urge you to attend on September 19 and 20, 2011.
I stepped into a hornet nest this week when I posted a write-up about a new flash storage array from Pure Storage. The controversy had nothing to do with the underlying technology, which seems quite sound. Rather, it was all about pricing, with Pure’s competitors calling foul on their price comparisons.
I’ve witnessed quite a few publicity stunts from IT industry companies, many of which include over-the-top videos. But it’s rare to find one that’s actually amusing and informative. That’s why I was so pleased to discover a new video from Symantec on YouTube: It’s silly and fun, well produced, and actually tells us something about data de-duplication! Take a look yourself, and let me know what you think.
Dropbox recently clarified (via their blog and privacy policy) that they “de-duplicate” user files. This has been known for quite a while, and is obvious to anyone who’s had a large file “upload” instantly. But how exactly does Dropbox store files? Are they really de-duplicated or just single-instanced? I set out to discover the answer.
Next month, I will be heading to Chicago for TechTarget’s Storage Decisions conference. This show does a good job on the editorial side, suggesting timely topics and bringing in independent voices like Howard Marks. I will have three presentations to give: Sessions on data reduction and storage virtualization in the main conference track, as well as a dinner discussion focusing on controlling the growth of data. Registration is free for qualified end-users, and I urge you to attend.
Last week, after the Exec Event in Palo Alto, I joined my friend W. Curtis Preston for his first Backup Central Live! event. Curtis has spent years educating IT pros about data protection, this was the first week of a new series of self-produced events. And let me tell you, although I’ve seen him present dozens of times, Curtis was really in his element here. He held the packed room enthralled, and the vendor sponsors I talked to were very pleased about the event!
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?
Any time OS X corrects your spelling or (more likely) inserts appropriate accent marks, Dictate loses its mind and can no longer correctly enter some random letter. There are two ways to fix this problem (apart from just restarting Dictate all the time).
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 difference between American and European mobile phone providers are vast, and the modern traveler is likely to run afoul if they are unprepared, running up a surprisingly large bill! Here’s a rundown of my standard techniques to prepare my American mobile phone for travel abroad.
The CompactFlash Association announced a new media card format last month, and now Sony and Nikon have introduced the first media and digital cameras, respectively. But what exactly is an XQD memory card? Read on for the details.
What elements remain unresolved to make FCoE truly world-class? What should the vendors be prioritizing?
Although they are ridiculously inefficient, incandescent lightbulbs seem to have a huge number of fans. Despite the romance of the glowing filament, many governments are moving to ban the use of incandescent light bulbs in many applications. Here in the United States, the federal government intends to encourage the use of more efficient light bulbs but there is no outright ban.