This week, the New York Times ran a series of articles about data center power use (and abuse) “Power, Pollution and the Internet” (http://nyti.ms/Ojd9BV) and “Data Barns in a Farm Town, Gobbling Power and Flexing Muscle” (http://nyti.ms/RQDb0a). Among the claims made in the articles were that data centers were “only using 6 to 12 % of the energy powering their servers to deliver useful computation. Like a lot of media broadsides, the reality is more complex than the dramatic claims made in these articles. Technically they are correct in claiming that of the electricity going to a server, only a very small fraction is used to perform useful work, but this dramatic claim is not a fair representation of the overall efficiency picture. The Times analysis fails to take into consideration that not all of the power in the data center goes to servers, so the claim of 6% efficiency of the servers is not representative of the real operational efficiency of the complete data center.
On the other hand, while I think the Times chooses drama over even-keeled reporting, the actual picture for even a well-run data center is not as good as its proponents would claim. Consider:
A new data center with a PUE of 1.2 (very efficient), with 83% of the power going to IT workloads.
Then assume that 60% of the remaining power goes to servers (storage and network get the rest), for a net of almost 50% of the power going into servers. If the servers are running at an average utilization of 10%, then only 10% of 50%, or 5% of the power is actually going to real IT processing. Of course, the real "IT number" is the server + plus storage + network, so depending on how you account for them, the IT usage could be as high as 38% (.83*.4 + .05).
Apple's new iPhone 5 is a case study in incremental improvement. Nearly every aspect of the product -- the CPU, display, cameras, radio modem, size, weight, etc. -- are all improved over the iPhone 4S and at the same $199 price point. No doubt, the iPhone 5 and iOS 6 will sell millions of units, preserve Apple's momentum, and hold off the competition, but significant threats are mounting that Apple cannot afford to ignore:
Nokia is delivering Apple-quality innovation. As Nokia demonstrated last week at its Lumia 920 event, Nokia's innovation engine is firing on all cylinders. When the Lumia 920 launches (rumored for November 2), it will outclass the iPhone 5 in key areas such as imaging (PureView imaging, Cinemagraph) and location (Maps, City Lens, Transit) as well as bring wireless charging and NFC into the mainstream. While the breadth of accessories will be nowhere near what the iPhone offers, Nokia gets strong marks for showing Apple how NFC can enhance the accessory experience.
To the surprise of no one, Apple today announced its new iPhone 5. Given that the iPhone 5 is unlikely to solve the European debt crisis or bring peace to the Middle East, it won’t be surprising if we hear a resounding "meh" from Apple's critics, with them dinging the company for a paucity of innovation. Indeed, competitors like HTC and Nokia have already offered some of the features that Apple highlighted today, such as those for imaging. But Apple still outpaces the competition when it comes to the entire package — the new iPhone unites significant improvements in industrial design, imaging, audio, and connectivity, along with the wealth of new capabilities that iOS6 enables. Apple will sell a boatload of iPhones — especially now that both Verizon Wireless and Sprint will have an iPhone (the 8 GB iPhone 4) for consumers' favorite price: free.
But make no mistake, this is not about the iPhone 5 versus the Samsung Galaxy S III or the iPad versus the Kindle Fire HD; this is about customers' attachment to the larger ecosystems that those devices inhabit. Amazon, Apple, Google, and Microsoft all aim to translate customers' investments — of money, information, personalization, and social connections — into a gravitational field of loyalty so powerful that few customers will ever attain escape velocity. This market is still taking shape, but the iPhone 5 will markedly increase Apple's pull, already the strongest out there.
On Tuesday, September 4, Microsoft made the official announcement of Windows Server 2012, ending what has seemed like an interminable sequence of rumors, Beta releases, and endless speculation about this successor to Windows Server 2008.
So, is it worth the wait and does it live up to its hype? All omens point to a resounding “YES.”
Make no mistake, this is a really major restructuring of the OS, and a major step-function in capabilities aligned with several major strategic trends for both Microsoft and the rest of the industry. While Microsoft’s high level message is centered on the cloud, and on the Windows Server 2012 features that make it a productive platform upon which both enterprises and service providers can build a cost-effective cloud, its features will be immensely valuable to a wide range of businesses.
What It Does
The reviewers guide for Windows Server 2012 is over 220 pages long, and the OS has at least 100 features that are worth noting, so a real exploration of the features of this OS is way beyond what I can do here. Nonetheless, we can look at several buckets of technology to get an understanding of the general capabilities. Also important to note is that while Microsoft has positioned this as a very cloud-friendly OS, almost all of these cloud-related features are also very useful to an enterprise IT environment.
New file system — Included in WS2012 is ReFS, a new file system designed to survive failures that would bring down or corrupt the previous NTFS file system (which is still available). Combined with improvements in cluster management and failover, this is a capability that will play across the entire user spectrum.