Clustering in VMware vSphere 6.7

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In the vSphere cluster, there are a host of hosts that share their resources in a resource pool, in other words, the cluster of a computing power and the memory size of all cluster member hosts is a collection of several host machines that form the cluster group they give.

The clustering in vSphere is divided into two categories:

  • Virtual machine clustering on a physical server
  • Virtual machine clustering on multiple physical servers

In a virtual machine clustering on a physical server, a cluster is created on a physical server from clustered virtual machines on an ESXi server.

Virtual machines are connected to a shared memory. This type of configuration helps to increase the stability of the services against potential problems for the operating system, but due to the lack of a physical server, the ability to keep the services stable against For example, two virtual machines have been clustered on a hardware server.

Virtual machines are connected through dedicated links that provide instantaneous communication. Each virtual machine connects to a single shared memory that can be SAN or Local disk.

In the virtual machine clustering on several physical servers, virtual machines come in the form of clustering on different physical servers, and in addition to stability against software and firmware problems, they also maintain the stability of the services against hardware issues. Slowly

This architecture requires shared memory, so in this type of architecture, a number of virtual machines are placed on a number of physical server servers, and each virtual machine is connected to the shared memory that is on the SAN.

As stated above, the goal of clustering in vSphere is to collect resources and manage the resources of all host virtual machines, and also with the clustering, you can use FT and HA capabilities.

How to cluster in vCenter environment

In order to be able to integrate your systems into the cluster, you must first connect to the vCenter you want to use through the management console. To build the cluster after connecting to the vCenter, you must right-click on your data center and click on the New Cluster option to open it for your console.

Choose a name for your cluster

After you create the cluster, you need to transfer your servers to this cluster, which you need to drag and drop onto the server to drag and drop it into the cluster.

In the summary tab, you can see how your resources are and how much disk, RAM, and CPU you have.

In the VMs tab, it shows you the number of virtual machines and displays the hosts in the host part, and in the performance section it shows the performance of the systems.


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Sabir Hussain Soomro
About Sabir Hussain Experienced IT Specialist with a history of working in the information technology and services industry. Skilled in VMware ESX, Domain Name System (DNS), DHCP, VoIP, Water Backup Solutions, Adobe Connect, Servers, and Data Center. but quickly found a large following of readers and subscribers. Connect on: Google + or Feel free to network via Twitter.@VMGate110