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Virtual Geek

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

Blog posts : "vsphere"

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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Troubleshooting replacing a corrupted certificate on Esxi server

While deploying your own certificate on ESXi server you need to follow certain requirement to create it as shown here, if new generated certificate is not correct as per the standard and if they are replaced overwritten without proper backup, it can cause connection error on ESXi server and you wil…

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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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Replacing a default ESXi certificate with a CA-Signed certificate

Generate new self-signed certificates for ESXi using OpenSSL

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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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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Installing VMware.Powercli latest version and Error Invalid server certificate Set-PowerCLIConfiguration

Way long back, After writing my my article VMWARE VSPHERE POWERCLI INSTALLATION AND CONFIGURATION STEP BY STEP, I decided today to upgrade my vSphere PowerCLI to newer version 10 in the office, I am choosing little bit different installation method instead of using exe installer, PowerCLI can be do…

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Using PowerCLI to Increase VMDK (Virtual disk) in VMware Virtual Machine

Below oneliner commands I recently used to configure multiple VMware Virtual Machines Hard disk, Task was to grow/extend VMDK virtual disk on more than hundreds of the virtual machine. Below is the main techniques and gist of the article and scripts. These one-liner commands also include the command…

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Esxi update individual component firmware on HP hardware: disk degraded not authenticated

Server hardware goes faulty is common in any organization, I was doing healthcheck on all vCenter, few of my ESXi servers were showing alerts on faulty storage controller battery and HDD storage issue, they were running on HP hardware, after checking ILO pages, hardware health status was in yellow o…

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Solved: Esxi server cannot joined into active directory domain

I assigned one task to my junior colleagues to configure authentication services on vmware esxi servers (Join esxi server into domain), They reported to me that they are not able to join few esxi servers in the domain and giving error. They followed correct instructions as shown below from my earlie…

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Create bootable USB from ISO file

I was planning to install VMware ESXi OS on newly purchased servers in my office, There was no remote console (ILO, DRAC, IPMI or IMM RSA) available, because networking was yet to be configured, till the time until network is up, being ahead of time, I wanted to install OS on the physical server, I …

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Part 3: VMware Powercli: Migrate VMs to another network

vMotion from all VMs on selected Esxi Host to other Esxi host via PowerCLI GUI

Currently I am doing complete VMware environment upgrade in my office in terms of hardware as well, After few plans I found most of my Esxi servers in VMWare clusters in my office were over committed. First question was by my boss was how do we perform it without degrading current VMs performance. 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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ESXi 6.0 update offline bundle via esxcli commandline: DependencyError VIB bootbank requires VSAN ImageProfile

After completing updating my most of the ESXi 6.5 hosts in the environment as shown in ESXi 6.5 upgrade bundle via command line: No Space Left On Device Error, I wanted few standalone ESXi server to update to 6.0 version, for same offline bundle can be downloaded from my.vmware.com. I uploaded cop…

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ESXi 6.5 upgrade bundle via command line: No Space Left On Device Error

I received few standalone ESXi 6.5 hosts for patching for branch office, I wanted to upgrade build number on server, As there was no option of VMWare update manager for standalone esxi. Here I upgraded them using offline bundle zip. These requires offline bundle zip to be be downloaded from url …

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Upload files to vmware ESXi datastore: Different methods

Copying files to VMware Datastores is an easy task. Here in this article, I am showing 3 different methods to upload files to VMware datastores, You can use these methods to copy offline bundle zip, VIB, VMDK or ISO files. Ifyou are using VMWare vSphere web client to upload files to datastore, make …

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