Cisco, Cluster on Die, and the E5-2600v3

I was in a meeting where someone noted that VMware does not support the Cluster on Die feature of the new Intel Haswell E5-2600v3 processors.  The question came: “What performance degradation do we get by not having this supported?  And would it be better to instead use the M3 servers” This information they got from […]

Unauthorized UCS Invicta usage

I had a UCS Invicta that I needed to change from a scaling appliance (where more than one invicta node is managed by several others) to a stand alone appliance.  I thought this could be done in the field but at this point I don’t think its an option still.  The below info is just […]

On reading about choosing between NSX and ACI

I consider myself  very fortunate to work in the IT industry.  Not only do I get to develop and deploy technologies that enhance the world we live in, but I also get more drama from the different companies than a soap opera.  Take for example the story of how Jayshree left Cisco to help build […]

Installing Cisco DCNM on Red Hat Linux

DCNM is Cisco’s GUI for managing MDS and Nexus products.  It’s pretty great for getting a visual of how things are configured and performing. I thought I would go into a little more detail than I’ve seen posted online about installing DCNM on RedHat Linux.  In this example we’ll be installing two servers.  One server […]

The CCIE Data Center Certification Process

  On July 9th, 2014 I passed the CCIE Data Center lab exam in San Jose earning me the CCIE certification.  Hurray!  When my team heard that I had done it, their response was:  If Vallard can do it, so can I!  Ha ha.  So needless to say a few more people have started down […]

Distributed Data Centers

My thoughts on what cloud computing and the future of the data center has changed a bit in the last 3 years.  When I first started working on a cloud computing project for a large bank in America back in 2008 I was convinced that soon every enterprise would create their own private cloud and […]

A few Nexus notes

I’ve been working with OTV and Fabricpath and I thought I’d put a few pointers down that I learned that had me scratching my head for a while. 1.  To makes sure that OTV is working, the join interfaces on each side must be able to ping each other.  Let’s say that site A has […]

QoS and Jumbo Frames on the Nexus 5500

  I’ve had the fortunate opportunity to have two Nexus 5548UPs in my lab to help test upgrade problems for one of my customers.  Its been great to have some gear to play with and really try to understand how it all works together. One of the issues I’ve run up against in the past […]

FCoE with UCS C-Series

I have in my lab a C210 that I want to turn into an FCoE target storage.  I’ll write more on that in another post.  The first challenge was to get it up with FCoE.  Its attached to a pair of Nexus 5548s.  I installed RedHat Linux 6.5 on the C210 and booted up.  The […]

Changing UCS IP addresses

I have a UCS lab machine that I sometimes take to different locations for proof of concept work.  One of the things I regularly have to do is change the password and hostname.  Here’s how you do it on the command line: KCTest-A# scope fabric-interconnect a KCTest-A /fabric-interconnect # set out-of-band ip 10.1.1.23 netmask 255.255.255.0 […]