How to remove the unused extension from vCenter 7

Hi, Today I will show you how we can remove the unused extension from VMware vCenter.

First of all, Where is the extenstion?

Please go to this address:

https://vCenter IP address → Administration → Solution → Client Plugins

I want delete this plugin from my vCenter.

1- go to the below address

https://vCenter IP address/mob

2- Enter your vCenter username and password

3- In the Properties Section, Click on Content

4- On the next page, click on ExtensionManager

5- Find your extension name. For example, I searched for the HPE plugin

Copy the extension name

6- Go to the Methods section under the page and find and click on UnregisterExtension

7- Paste or write your extension that you want to delete here and click on Invoke Method.

Finish 🙂

Step by Step Enable vSAN 7.0 Manually

Hi, Today i decided to enable manually vSAN 7.0 on vCenter 7.0 u3.

You can find more information about vSAN prerequisite from this page.

1- Before enable vSAN, We need to configure VMKernel adapters.

Login to your vCenter –> Select one host –> Configure Tab –> Under Networking select VMKernel adapters –> Select your VMKernel adaptor (vmk0 is my VMKernel) an click on Edit Setting

You must do this procedure for all your hosts.

Select vSAN then click on OK button.

2- Click on your vSAN Cluster, And select Configure Tab, Under Configure Tab select vSAN — > Services.

Click on CONFIGURE VSAN button to open the Configure vSAN wizard.

  • 3- Select the type of vSAN cluster to configure, and click Next.
    • Single site cluster.
    • Single site cluster with custom fault domains.
    • Two node vSAN cluster.
    • Stretched cluster.
    • vSAN HCI Mesh compute (Sharing Remote Datastores with HCI Mesh).

4- Configure the vSAN services to use, and click Next.

You can Configure data management features, including deduplication and compression, data-at-rest encryption, and data-in-transit encryption.

5- Claim disks for the vSAN cluster, and click Next.

Each host requires at least one flash device in the cache tier, and one or more devices in the capacity tier.

6- Review the configuration, and click Finish.

Finish 🙂

vSphere Cluster Services (vCLS) enhancements

Hi, Today i want to write about new feature of vCenter 7 Update 3, With vSphere 7.0 Update 3, vSphere admins can configure vCLS virtual machines to run on specific datastores by configuring the vCLS VMs datastore preference per cluster. Admins can also define compute policies to specify how the vSphere Distributed Resource Scheduler (DRS) should place vCLS agent virtual machines (vCLS VMs) and other groups of workload VMs. 

First of all, What is vSphere Cluster Services (vCLS) ?

vSphere Cluster Services (vCLS) is a new feature in vSphere 7.0 Update 1. This feature ensures cluster services such as vSphere DRS and vSphere HA are all available to maintain the resources and health of the workloads running in the clusters independent of the vCenter Server instance availability.

In vSphere 7.0 Update 1, VMware has released a platform/framework to facilitate them to run independently of the vCenter Server instance availability. In this release, vCenter Server is still required for running cluster services such as vSphere DRS, vSphere HA etc.

vCLS is a mandatory feature that is deployed on each vSphere cluster when vCenter Server is upgraded to Update 1 or when a fresh deployment of vSphere 7.0 Update 1. ESXi host can be of any older version that is compatible with vCenter server 7.0 Update 1.

Size of the vCLS VMs

vSphere Cluster Service VMs are very small VMs compared to workload VMs. Each consumes 1 vCPU and 128 MB of memory and about 500 MB of storage. Below table shows the specification of these VMs:

Memory 128 MB
Memory Reservation 100 MB
Swap Size 256 MB
CPU Reservation 100 MHz
Hard Disk 2 GB
Ethernet Adapter 0 (It is a No NIC VM)
VMDK Size -245 MB
Storage Space -480 MB

How can configure this new feature of vCenter:

Login to your vCenter Server.

Click on your Cluster name and select Configure tab and select vSphere Cluster Services –> Datastores

Click ADD

Select one or more DataStores in which you want vCLS VMs to be created.


Finish 🙂