Lets Talk About Sexigraf @Sexigraf_fr #Sexigraf #Monitoring #vExpert

October 9, 2017 Bilal Ahmed 0

So I went to my first VMUG recently and it was great! I met plenty of new people and learned a lot of new things. I got in a few discussions about monitoring and I mentioned that I was pretty fond of Sexigraf @Sexigraf_fr . I found it interesting that a few people had never heard of this great FREE product. I mean monitoring is important, whether you want to know what your cluster utilisation is or how your datastore latency is or how your VSAN cluster is doing. Keeping stats for a period of time is also important because you want to be able to monitor trends etc. There are plenty of products out there that can help you […]

VCDX Defense Presentation: Mapping it’s genome

May 10, 2017 Jason Grierson 1

So after hours of working on your design, submission, and with some patient waiting you finally get that email from VMware stating your design has been accepted for defense!  Quickly you go into over drive and start ferociously working on your defense presentation.  Now maybe you already started working on your design presentation, maybe you haven’t but I find the questions typically always have a trend of similarity with the biggest one being: HOW do I take a 100-500 page VMware design and cram it into 20-30 presentation slides and get the message across in 75min? So first off why 20-30 slides?  Well taking the 75min you have to defend and dividing that by 20 will leave you roughly 3.75min […]

A different take on the SRM upgrade order

March 3, 2017 Kim Bottu 0

Upgrading a vSphere environment with SRM can be tricky. If you follow the official best practice on how to upgrade vSphere and SRM you might find yourself in a position where SRM is out of commission because the last part of the upgrade process,  the part where you upgrade the DR site, fails. The official recommended way to upgrade SRM The official recommended way to upgrade SRM connected sites is to upgrade all components in the Primary sites first and then upgrade the components in the DR site. This means that you upgrade vCenter components followed by the SRM components in Primary Site A first, followed by vCenter components and the SRM components in Primary Site B and then by the vCenter components […]

The Host Virtual MAC Address Riddle

September 5, 2016 Bilal Ahmed 0

For ages I have been pondering over ‘something’ which seems very trivial and the fact I can’t get any solid info on it is driving me nuts: Why does every pNIC also have a virtual MAC address? So here with have the VMkernel ports, a VSS and pNICS: Just as you would expect, every physical NIC (pNIC) on a host has a MAC address. BUT when you type ‘esxcfg-info -n‘ in the shell, you will notice that every vmnic also has a Virtual MAC Address!   \==+Physical Nic : |—-Name…………………………………………..vmnic3 |—-PCI Segment…………………………………….0 |—-PCI Bus………………………………………..2 |—-PCI Slot……………………………………….0 |—-PCI function……………………………………1 |—-MAC Address…………………………………….XX:XX:XX:32:06:1f |—-Virtual MAC Address……………………………..00:50:56:52:06:1f |—-FPT Shareable………………………………..true Now as you can see the Virtual MAC Address starts off with a VMware MAC and then finishes at the […]

Journey to VCIX-NV – Intro

July 23, 2016 Shady ElMalatawey 0

This is my series regarding my journey towards VCIX-NV. This series is not about giving you a full hands-on guide for the exam as many have already done this well, but this is only about adding more remarks about the lab issues and other useful resources. For those who don’t know VCIX-NV is a practical-lab certification for VMware NSX. To be able to pass the exam you will need a home-lab or some old servers at work which have been setup with vSphere and NSX so you can get your hands dirty. This is just an introduction I will list my used resources, my home lab configuration and a short description of what my virtual lab is gonna be like. Used Resources: VMware […]

Many Cores per Socket or Single-Core Socket Mystery

May 11, 2015 Shady ElMalatawey 3

Hi All During some readings, I remembered the eternal debatable Question when creating SMP VM (VM with many vCPUs): “Which is better: many Cores in a single socket or many Sockets each with single core..??” I remember how many times I debated for hours with my technical manager -while reviewing some designs- about the same question, but neither of us could prove a bit. To answer this question, we have to review some concepts: NUMA CPU Configuration: Non Uniform Memory Access (NUMA) is a CPUs configuration, in which each CPU has some Memory DIMMs local and connected to it. Each CPU can access both its local memory DIMMs with lowest latency and the remote DIMMs with higher latency using Interconnecting […]

VCDX 2015 Study Group

March 28, 2015 Shady ElMalatawey 1

"VMware Certified Design Expert – VCDX", the most difficult and most bright certificate in Virtualization field and only compared to Cisco Certified Architect (CCAr). Many Virtualization & Cloud experts try to acquire this certificate to prove their excellency and sharp skills and to add more and more to their personal value. Me and my friend "Jason Grierson"- for those who don't know Jason and his tool, check this blog post – decided to pursuit VCDX 2015, Oct. panel. And as we did before, we decided to join a VCDX Study Group. This should help us with our design paper, provide more and more eyes to review your design, more peers to question your design decisions to be hardened and help us exchanging […]

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