Planet vSphere-land

If you follow my Twitter feed you knew this article was coming… After spending about 3 hours on the phone with a customer trying to help them get their CSV (Cluster Shared Volume) for HyperV back online (I was on the phone not because I’m a HyperV guy but because I implemented the storage they [...]

Welcome to Technology Short Take #29! This is another installation in my irregularly-published series of links, thoughts, rants, and raves across various data center-related fields of technology. As always, I hope you find something useful here. Networking Who out there has played around with Mininet yet? Looks like this is another tool I need to add to my toolbox as I continue to explore netwo...

Welcome to Technology Short Take #28, the first Technology Short Take for 2013. As always, I hope that you find something useful or informative here. Enjoy! Networking Ivan Pepelnjak recently wrote a piece titled “Edge and Core OpenFlow (and why MPLS is not NAT)”. It’s an informative piece—Ivan’s stuff is always informative—but what really drew my attention ...

This is a follow-up to a recent post about modernizing data protection and doing more than simply swapping out media or mediums like flat tires on a car as well as part of the Quantum protecting data with certainty event series. As part of a recent 15 city event series sponsored by Quantum (that was a disclosure btw ) titled Virtualization, Cloud and the New Realities for Data Protection that ...

Welcome to Technology Short Take #23, another collection of links and thoughts related to data center technologies like networking, storage, security, cloud computing, and virtualization. As usual, we have a fairly wide-ranging collection of items this time around. Enjoy! Networking A couple of days ago I learned that there are a couple open source implementations of LISP (Locator/ID Separation...

I just finished reading a post on ZDNet titled “Are Hyper-V and App-V the new Windows Servers?” in which the author—Ken Hess—postulates that the rise of virtualization will shape the future of the Microsoft Windows OS such that, in his words: The Server OS itself is an application. It’s little more than (or hopefully a little less than) Server Core. The author also ...

Yesterday I posted an article regarding SR-IOV support in the next release of Hyper-V, and I commented in that article that I hoped VMware added SR-IOV support to vSphere. A couple of readers commented about why I felt SR-IOV support was important, what the use cases might be, and what the potential impacts could be to the vSphere networking environment. Those are all excellent questions, and I ...

While browsing my list of RSS feeds tonight, I came across a series of articles by John Howard, a senior program manager on the Hyper-V team at Microsoft. The post was one of a series of posts describing SR-IOV support in the next version of Hyper-V, found in Windows “8″. I hadn’t heard that Microsoft was adding SR-IOV support to the next version of Hyper-V, so when I saw that ...

Welcome to Technology Short Take #18! I hope you find something useful in this collection of networking, OS, storage, and virtualization links. Enjoy! Networking The number of articles in my “Networking” bucket continues to overflow; I have so many articles on so many topics (soft switching, OpenFlow, Open vSwitch, MPLS) that it’s hard to get my head wrapped around all of it. H...

Welcome to Technology Short Take #16. It’s been quite a while since my last Technology Short Take (a month!), and I don’t know if that’s a good thing (so readers didn’t have to listen to my rambling) or a bad thing (readers missing out on what I hope are useful or interesting links). In any case, here’s my latest collection of various data center-related links, arti...

A recent post by Microsoft on the Windows Virtualization Team Blog titled “Hyper-V VM Density, VP:LP Ratio, Cores and Threads” caught my eye this morning as I was scanning my RSS feeds. In this post, the author (the anonymous WSV_GUY) works through the idea of cores vs. logical processors. The distinction here, in case you didn’t already know, is that many modern multi-core CPU...

Welcome to Technology Short Take #10, my latest collection of data center-oriented links, articles, thoughts, and tidbits from around the Internet. I hope you find something useful or informative! Networking Link aggregation with VMware vSwitches is something I’ve touched upon a great many posts here on my site, but one thing that I don’t know I’ve ever specifically called out...

Welcome to Technology Short Take #7! This time around I have a collection of links from networking, servers, storage, and virtualization. Our hot topics in this issue include Fibre Channel over Ethernet (FCoE) and its need—or lack thereof—for congestion management, Ubuntu on Hyper-V, the benefits of VAAI, and more! Networking I have a lot of FCoE-related links this time around. IR...

Welcome to Technology Short Take #4, the latest collection of virtualization, storage, networking, and other data center-related links, news, thoughts, and views. As always, I hope you find something interesting here! First up, we’ll revisit the idea of multi-hop FCoE. You might recall a couple of articles I wrote a while ago about Network Interface Virtualization (NIV) and the role of NI...

Welcome to Technology Short Take #3, a collection of links about key data center technologies like virtualization, networking, and storage. I’m still striving to broaden the scope of these posts to include even more storage and networking posts, so I’d love to hear feedback from readers on how well I’m doing and what other sources I should consider for inclusion here. But enoug...