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VMware VSAN & Boot Devices considerations

  • Posted on March 13, 2018
  • by Mohamad Alhussein

Recently, I have been engaged in multiple VSAN HCI projects designs. One of the most interesting decisions to take was the kind of boot devices that will hold the ESXi installation as this will introduce a bunch of  discussions that…

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  • VMware vExpert

vExpert 2018 Award Announcement

  • Posted on March 11, 2018March 13, 2018
  • by Mohamad Alhussein

Finally, VMware announced the list of vExperts for 2018 on the 9th of March. For me as a first timer, I was really honored and delighted to join such a community that is unlike any other in professional IT.   Many…

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  • VMware vRealize Log Insight

VMware vRealize Log Insight Error Hostd: [LikewiseGetDomainJoinInfo:354] QueryInformation()

  • Posted on February 8, 2018February 8, 2018
  • by Mohamad Alhussein

For those of you who do not know vRealize Log Insight. It is a log collector and analyzer, with a pretty, simple and intuitive GUI. An easy way of managing logs and messages from all your datacenter devices. Best of…

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  • VMware vSAN

VMware vSAN Stretched Cluster Failure Scenarios

  • Posted on January 16, 2018
  • by Mohamad Alhussein

Introduced in vSAN 6.1, stretched clusters can be used in environments where disaster and downtime avoidance is a key requirement. It protects virtual machines across data centers, not just racks. A stretched cluster extends across the following sites: Two active-active…

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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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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.

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