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Category Archives: Uncategorized
Letter To Santa
Dear Santa, I’ve been terrific at virtualising low hanging fruit over the past years. I have reduced costs while increasing availability, reliability and performance for my applications. I’m a prodigy, I’m a super-hero! Now my CIO asked me to realize the … Continue reading
Posted in Bull, ESXi, Monster VM, Performance, Uncategorized, VMware, vSphere
Tagged Christmas, Monster Bullion, Monster VM, Santa, Santa Claus
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Bull’s Implementation of a Glued Architecture
In my two previous posts, I’ve been introducing the concept of ‘glueless’ and ‘glued’ as the two main scale-up architectures. You can read them here and here. Eventually you may also read this post in the series talking about the … Continue reading
Posted in Bull, Monster VM, Performance, Uncategorized, vSphere
Tagged BCS, Bull, eXternal Node-Controller, Intel, Intel QuickPath Interconnect, scale-up
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Two Main Scale-Up Server Architectures – Part 1
To address the increasingly demanding workloads, processor sockets are added in a seamless way within a single server. You’re scaling up. Sockets are connected together as well as the memory and IO boards and applications can benefit from more compute … Continue reading
Posted in Bull, ESXi, Monster VM, Performance, Uncategorized, vSphere
3 Comments
A Year Of Blogging In Summary And Season’s Greetings
2011 comes to an end and it’s time to do some introspection of this year’s blogging experience! That sounds familiar 🙂 In May 2011 I joined VMware in a permanent position. I joined a top notch team of Consultants. La crème … Continue reading
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DIMMs And The Intel Nehalem Memory Architecture Connection
In this post I want to focus only on the intrinsic connection that exists between DIMMs and the Intel Nehalem regarding primarily the memory architecture. I was reading some good papers on this topic and I discovered some interesting details that I … Continue reading
Posted in Uncategorized
15 Comments
Enhanced Storage vMotion in vSphere 5 with Mirror Mode
This is a short post for those who are interested in deep technical details of one of the master architecture pieces introduced in the Enhanced Storage vMotion available in vSphere 5 Ent and Ent+ called Mirror Mode aka IO Mirroring. You … Continue reading
Posted in Uncategorized
3 Comments
It All Started With This Question…
…I shoot on Twitter: Can anyone cite me an Active/Active storage array that supports ALUA? An important information is missing from my question. Precisely I’m talking about symmetric storage arrays. So let me rephrase my question to: Can anyone cite me … Continue reading
Posted in Uncategorized
13 Comments
Limiting Disk I/O From A Specific Virtual Machine
I wanted to follow up on my previous post; Is a Virtual Machine Bringing Your Storage Down? with some test in my home lab. Nothing ‘real life’ but enough to get familiar with these new features. Control the IOPS is something crucial in … Continue reading
Posted in Uncategorized
13 Comments
Is a Virtual Machine Bringing Your Storage Down?
Have you ever had a user running IOmeter on a virtual machine just to ‘test’ the performance of the virtual disk… at 9am…on a Monday morning?? Well it might happen to you once but not twice as you would immediately … Continue reading
Posted in Uncategorized
8 Comments
In-Guest Defragmentation – The Holy Grail For Best Performance?
In one of our internal mailing list, a question regarding in-guest defragmentation came up again. The right answer to this question is simple. It depends! OK that’s fair, but it depends on what? Well mostly it depends on two things: what kind … Continue reading
Posted in Uncategorized
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DeinosCloud 