Author Archives: Kevin Houston

About Kevin Houston

Founder of BladesMadeSimple.com. Blade server evangelist.

Nutanix Cluster: Disruptive to Blade Server Market?

 

With all that is made of the competition between blade server manufacturers and the growth of the blade server market in general, is there room for another type of condensed computing in the data center? Have we been going about things all wrong with regard to architecture design?

Nutanix thinks so.

Nutanix is a start-up company geared towards delivering a simplified virtualization infrastructure with a strong focus towards eliminating the need for a SAN. Their clustered solution brings storage and compute together which theoretically reduces expense, reduces complexity, and improves performance. On its own it doesn’t really seem that innovative but the secret sauce is how they make the cluster scale and tier/span data across all nodes without sacrificing performance. Each node has the usual compute resources plus a mix of local SSD and SATA hard disks. There are 4 nodes per 2u enclosure called a “block”. Add more blocks and you have a Nutanix cluster. The software stack scales and balances everything between the nodes and blocks. The technology originated from the architecture that companies like Google and Facebook employ in their data centers. Assuming that can be taken at face value, the scalability potential is phenomenal.

So what’s the big deal?

Well my thinking is that if you can eliminate the need for a SAN (for virtualization) then you can definitely eliminate the need for an enclosure of blade servers. No interconnects. No Enclosure. Simplified network architecture. No SAN. What’s not to love?

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Dell Network Daughter Card (NDC) and Network Partitioning (NPAR) Explained

If you are a reader of BladesMadeSimple, you are no stranger to Dell’s Network Daughter Card (NDC), but if it is a new term for you, let me give you the basics. Up until now, blade servers came with network interface cards (NICs) pre-installed as part of the motherboard.  Most servers came standard with Dual-port 1Gb Ethernet NICs on the motherboard, so if you invested into a 10Gb Ethernet (10GbE) or other converged technologies, the onboard NICs were stuck at 1Gb Ethernet.  As technology advanced and 10Gb Ethernet became more prevalent in the data center, blade servers entered the market with 10GbE standard on the motherboard.  If, however, you weren’t implementing 10GbE then you found yourself paying for technology that you couldn’t use.  Basically, what ever came standard on the motherboard is what you were stuck with – until now.

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Why Are Dell’s Blade Servers “Different”?

I’ve learned over the years that it is very easy to focus on the feeds and speeds of a server while overlooking features that truly differentiate.  When you take a look under the covers, a server’s CPU and memory are going to be equal to the competition, so the innovation that goes into the server is where the focus should be.  On Dell’s community blog, Rob Bradfield, a Senior Blade Server Product Line Consultant in Dell’s Enterprise Product Group, discusses some of the innovation and reliability that goes into Dell blade servers.  I encourage you to take a look at Rob’s blog post at http://dell.to/mXE7iJ. Continue reading

Customer Success Story with Dell, Citrix and VMware

I always find it interesting to hear how customers are using blade server technology “in the real world.”   Brickworks, a $1.7 billion Australian brick company with over 60 locations and 1,000 employees, recently provided The Australian with details about how Citrix XenApp Enterprise combined with VMware vSphere and Dell rack and blade servers helped develop a more efficient workplace for its employees.  Continue reading

A New Look

If you are wondering what is new about BladesMadeSimple.com besides my recent announcement – the answer is the site’s look.  Hopefully you will find the new look easier to navigate than the previous theme, but if you find any issues, please let me know at bladesmadesimple AT gmail.com.

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Change is Coming

Change is coming to BladesMadeSimple.com.  I created this site out of my passion for the blade server technology in late 2009.  Over the years, I have worked toward creating a site that can be a repository for blade server news and information.  The site has been my hobby and I have put hours of effort into creating content without receiving a single penny from outside advertising (although I have been on several invitation-only blogger events.) One of the things I worked hard for was to be a neutral voice, not leaning toward any one hardware vendor, but that’s where the change is coming. Continue reading

Will the New VMware vSphere 5 Licensing Affect Blade Vendors? (PART 2)

Since my last post, I heard lots of rumors that VMware would make some changes in their new licensing model. Well, this week VMware made an official announcement of changes and posted here.

VMware made very clear that all the changes were motivated by the feedbacks they have received: Continue reading