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  • VMware vSphere

Isolated vCenter 6.5 HA nodes “Failed to ssh connect peer node x.y.z.w”

  • Posted on January 11, 2018January 11, 2018
  • by Mohamad Alhussein

Introduction: Prior to vSphere 6.5, Windows Failover Cluster and Fault Tolerance (after it was improved to support 4 vCPU in vSphere 6.0) were two applicable methods to protect vCenter. These didn’t provide a real HA for vCenter as FT is…

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  • VMware NSX Data Center for vSphere

Step-by-Step NSX-V Upgrade from 6.3.4 to 6.3.5

  • Posted on January 7, 2018January 7, 2018
  • by Mohamad Alhussein

Recently, I was engaged in a NSX deployment where we installed NSX for vSphere v6.3.4. However, couple of days later, VMware highlighted that there is a critical bug with this release in the photon based NSX controllers in which a…

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  • VMware vSphere

Offline Manual ESXi Upgrade via CLI

  • Posted on December 29, 2017December 31, 2017
  • by Mohamad Alhussein

  Greetings, With the release version of vSphere 6.5,  VMware Update Manager (VUM) now comes embedded within  vCenter Appliance (VCSA) 6.5. VUM can then be used to upload patches to its repository, create baselines, scan hosts for updates and remediate…

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  • VMware vSAN

Migrating Workloads onto VSAN

  • Posted on December 29, 2017January 3, 2018
  • by Mohamad Alhussein

Recently, I have been engaged in multiple deployments for customers trying to move out from their traditional datacenters to a VMware-based hyper-converged infrastructures. HCI and especially VMware VSAN brings a lot of benefits to customers such as: Simplicity to deploy…

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  • VMware vSphere

MTU Change on a vSphere Environment

  • Posted on December 28, 2017December 31, 2017
  • by Mohamad Alhussein

A jumbo frame is an Ethernet frame with a payload greater than the standard maximum transmission unit (MTU) of 1,500 bytes. Jumbo frames allow ESXi to send larger frames out onto the physical network . Jumbo Frames can significantly improve network performance and decrease the amount of CPU…

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  • VMware vSAN

vSAN Architecture 100 Video Series

  • Posted on December 28, 2017December 31, 2017
  • by Mohamad Alhussein

vSAN Architecture 100 series playlist includes educational vSAN videos to help you learn more about product architecture, features, and benefits. This is a great set of beginner videos prepared by the amazing “Elver Sena Sosa“. It is a series of…

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  • VMware vExpert

vExpert 2018 Applications are Now Open

  • Posted on December 28, 2017December 31, 2017
  • by Mohamad Alhussein

Applications for the 2018 vExpert program are now open. Applications will be accepted until January 19th at midnight PDT. The vExpert 2018 announcement will be on February 16th 2018.  The VMware vExpert program is VMware’s global evangelism and advocacy program. The…

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  • VMware vSphere

Get Your “VMware vSphere 6.5 Host Resources Deep Dive” eBook

  • Posted on December 28, 2017December 31, 2017
  • by Mohamad Alhussein

This is my first time I attended VMWorld Barcelona 2017. What an amazing event !!! During my visit, I grabbed a hard copy of the “VMware vSphere 6.5 Host Resources Deep Dive” eBook signed by Niels Hagoort from Rubrik booth. I…

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  • VMware vSAN

Christmas Gift – VSAN Essentials 6.2 Available for Free

  • Posted on December 28, 2017December 31, 2017
  • by Mohamad Alhussein

Recently I was engaged in multiple VSAN deployments, I have read  multiple references like “VMware vSAN Design and Sizing Guide 6.6” and “VMware VSAN Network Design” but I always wanted to read the very famous “Essential Virtual SAN 2nd Edition”…

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  • VMware vSphere

VCSA6.5 – Failed to Upload Files to Datastore or Deploy NSX Manager OVA

  • Posted on December 28, 2017June 8, 2019
  • by Mohamad Alhussein

Introduction: From my opinion, setting up a lab and trying to break and fix the deployment is the best way to learn about the product before implementing a production environment. Beside the amazing HOL labs, sometimes you feel more confident…

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About This Site

This is the personal blog of Mohamad Alhussein. It is dedicated to my views and opinions on the various areas of the datacenter while emphasizing virtualization. It also serves as a learning tool for me to document deployments, configurations, and share possible solutions for the issues I encounter.

The opinions expressed on this site are solely mine and and does not necessarily reflect those of my employer.

Recent Posts

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  • VMware Cloud Director 10.x: Org and OrgVDC Creation
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