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Virtual Geek

Tales from real IT system administrators world and non-production environment

Blog posts : "vCenter Server"

Enable Access to the VCSA Bash shell or Appliance Shell

Currently, the vCSA is bundled with below supported shells - BASH Shell & Appliance Shell. The appliance shell can be used to update the VCSA, using the software-packages command and has some other use cases. When you log in for first time by default it shows appliance shell, below is the method to …

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How to replace default vCenter VMCA certificate with Microsoft CA signed certificate

VMCA (VMware Certificate Authority) is a one of the components in PSC (Platform services controller) inbuilt into vCenter server 6.x. VMCA is Certificate Authority and works as same as Microsoft CA certificate. It can issue certificates to VMware components i.e. vCenter, ESXi servers. In my previous…

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How to import default vCenter server appliance VMCA root certificate and refresh CA certificate on ESXi

This is step by step guide on basic vmware certificate chain installation in the infrastructure, all the steps performed on development infra, Back from my previous project, I installed new VMware vCenter appliance 6.7 recently and few of my esxi server were already installed with self signed certif…

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How to deploy vCenter server appliance on VMware Workstation

I keep experimenting in my vSphere lab environment, and this time wanted to Install fresh vCenter server appliance from scratch on VMware Workstation, with new version of VMware Workstation deploying OVF (open virtulization format) is very easy, although I already had written article previously D…

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vCenter server appliance 6.5 deployment Error The supplied system is not valid

I was setting up a new VMware vCenter server appliance for a new project. While in the middle of setup of vCenter post deployment configuration I was keep receiving below error as log.

Messages
Error: The supplied system name FQDN is not valid.
Resolution: If the supplied system name is a FQD…

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Solved Esxi host disconnected evaluation license expired

In my vmware vSphere homelab, I found my Esxi hosts were showing disconnected in vCenter. I tried connecting esxi host through vmware vSphere web client. But I was getting error notification of reconnect host failure with the message Evaluation mode licenses expired.

Task Name: Reconnect host

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Configure the VMWare Update Manager Proxy Settings using vSphere Web Client

In my lab I wanted to upgrade my vsphere lab, Because my VUM (VMWare vSphere Update Manager) didn't have direct internet access, I need to configure internet proxy server and In this article I will be configuring the Proxy Settings on VMWare Update Manager in the vSphere Web Client. So I will downlo…

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Add a vCenter Single Sign On Identity Source Active Directory (Windows Integrated Authentication)

This is a second part of my article How to join vCenter Server appliance to Active Directory, and here I am configuring Identity source on Single sign on. In my one of the previous article ADDING AND CONFIGURING VMWARE VSPHERE VCENTER SSO ACTIVE DIRECTORY AS LDAP SERVER  I used AD as ldap server…

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How to join vCenter Server appliance to Active Directory

I just finished deploying new VCSA 6.7 in my office for a new project, In this article I am showing procedure to join VCSA to active directory, and wanted to assign permissions to AD accounts but Active directory was not visible in permissions. For the same follow below steps on vCenter web client t…

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How to convert RDM disk (Raw Device Mapping) to VMDK

In my previous article I shown Adding and sharing RDM disk to multiple VMs in VMware step by step, I received one related task to convert virtual machine RDM (Raw device mapping) hard disk to VMDK disk. Basically I require it to convert because, I was not going to use microsoft clustering anymore, a…

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Powercli GUI: Determine the EVC Mode that vmware cluster should be configured

vmware vsphere esxi cluster, enhanced vmotion mode evc, cpu manufacturer, cpu generations, failover, drs, ha, vmware high availibility, distributed resource scheduler

I was evaluating one of the old project hosted on VMware in my office for a client, After ruff capacity calculation I found scarce of compute and memory resources in the VMware clusters. Few meetings and decisions, and sharing complete excel data and capacity planning for upcoming VMs, we decide…

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Create and configure VMWare vSphere VSAN cluster step by step

VMware vSAN is a Hyper-Converged storage (Software Defined Storage) solutions with a vSphere-native, high-performance architecture. With software defined storage, it has opened new opportunities to new skills. With vSAN we can use local disk and create highly available, scalable, high performance da…

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Configuring a vCenter PSC Single sign-on Active directory Integrated windows authentication

In my one of the earlier article I shown ADDING AND CONFIGURING VMWARE VSPHERE VCENTER SSO ACTIVE DIRECTORY AS LDAP SERVER, That was one of the security best practices, Here I am going to perform the same task but will use Active directory integrated windows authentication way instead. For this fe…

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Reset ESXi root password using Host Profiles on vCenter server: VMWare vSphere Web client

Recently I got assigned one of the VMware project, while taking handover I found esxi root passwords are not documented properly for the VMware infrastructure project, Luckily 40% Esxi host were joined into domain and I was able to reset password using Reset forgotten ESXi root password on Domain…

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The top 10 reasons to upgrade to VMware vSphere 6.5

1. Reorganize Administration and Management with a New and modern HTML5-Based User Interface 
Administer and manage the virtual data center with the responsive, easy-to-use new HTML5-based vSphere client interface. Although I am still big fan of vsphere client, As new versions of vsphere will be k…

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Unmount NFS datastores from VMware ESXi and NFS is in use

Mounting NFS datastore on ESXi server is very easy, similar way you might need to remove/unmount NFS share from ESXi server for maintenance or migration purpose. To unmount it, open VMWare vSphere Web Client and select Storage tab, from the list select NFS datastore, right click on it and sele…

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Mount NFS share to multiple ESXi hosts

"A datastore with the same name and backing configuration already exists in the current datacenter. Change the datastore name and backing configuration to continue."

While adding NFS datastore on esxi server I saw above error. This NFS drive was already added on the Esxi001 successfully, but when…

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Part 4: Remove ESXi Host from Distributed switch and migrate to virtual switch completely

This is last and final part of this article series from migrating distributed switch to standard switch. In this series I have already created and copied existing dvswitch and its portgroup to new standard switch, then migrated Management network and vMotion VMkernel virtual network adapter to stand…

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Migrating move back from Distributed virtual switch to Standard virtual switch - VMs (Virtual Machine) - Part 3

In my earlier article after moving all VMkernel network adapters from dvswitch to sswitch, In this part I will be migrating Virtual Machine's network adapter from DvSwitch PortGroups to respective Standard vSwtich PortGroup. This is a one of the crucial stage and gather PortGroup Network information…

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Migrating move back from Distributed virtual switch to Standard virtual switch - VMKernal Adapter - Part 2

In this article I will be migrating VMKernel virtual adpaters from distributed virtual switches to standard virtual switch, in earlier article I addressed Copy or clone distributed virtual switch portgroups to standard switch portgroups - Powercli, this helps automating, creating Portgroup. Here I…

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