vCenter

Feb 292 min read

vCenter Web UI not accessible Error no healthy upstream.

Suddenly our vCenter in Production Environment stop working and had an web ui message "no healthy upstream" Log Analysis: From the logs,...

Feb 281 min read

VM HA Restart

We all know that in the BAU world, unexpected issues happen at any time. I find this script very helpful in our environment. I want to...

Apr 10, 20231 min read

/storage/core partition full due to core.netlogond.xxxxx files in vCenter Server Appliance

Issue: vCenter serve appliance may experience this problem, the appliance may get many core dump files due to which space on the...

Feb 16, 20231 min read

Error Connecting to vCenter uisng PowerCLI "Invalid server certificate"

- When trying to connect with PowerCLI to a vCenter Server Appliance the following error occurred: Error: Connect-VIServer Error: Invalid...

Dec 5, 20221 min read

When opening VMware vCenter you get the error - Privacy error: Your connection is not private

I encounter this error after resetting the vCenter self-signed Certificate. Issue: I get an error when trying you load our vCenter...

Oct 17, 20221 min read

Use the vmss2core tool to create a memory dump from the virtual machine snapshot

Prerequisites: - Obtain vmss2core - Please refer https://kb.vmware.com/s/article/2003941 - Retrieve files vmss2core.exe and zlib1.dll...

Oct 10, 20222 min read

vExpert Program

Do you know the vExpert Program? As you use social media, read, post and blog for you and your company, the technology you believe in,...

Oct 3, 20222 min read

VCSA SSL Mismatch and Cannot Edit VM Properties

Today I had a weird issue. All the VM servers Hard disk properties cannot edit and if we notice on the below screen capture the disk size...

Sep 19, 20221 min read

Resetting root password in vCenter Server Appliance 6.5 / 6.7 / 7.x

For passwords that have expired, the default vCenter Server Appliance password expires after 90 days Note: Take a snapshot or backup of...

Aug 15, 20221 min read

How to unlock and reset SSO password in vSphere 6.x/7.x using the vdcadmintool

Today I will show you how to reset/recover the vCenter Local Admin account Password In my case we need to recover the password of User ID...

Jun 6, 20221 min read

vCenter and ESXi Compatibility Guide

To see the VMware Product Compatibility please visit Product Interoperability Matrix https://interopmatrix.vmware.com/Interoperability...

May 31, 20224 min read

How to verify the VMWare products and hardware compatibility

For Today's blog I would like to share how to use the VMware Product and Hardware Compatibility Site. This is useful during the...

Apr 19, 20224 min read

Configure vCenter HA With the vSphere Client

vCenter HA is a high availability option for vCenter appliance which introduced with vSphere 6.5 vCenter HA is different from vSphere HA:...

Apr 10, 20221 min read

vCenter/PSC (VCSA) -/dev/mapper/archive_vg-archive 95% usage -FIX

Note: The partition /storage/archive partition can get full by design, as it is aimed at storing as much WAL history as possible and is...

Apr 6, 20221 min read

Renew the expired vCenter STS Certificate (Signing Certificate)

Issue: Logging in to the vSphere Client fails with the error: HTTP Status 400 – Bad Request Message BadRequest, Signing certificate is...

Apr 6, 20221 min read

Regenerate the vCenter Machine SSL certificate using self-signed VMCA

Steps: - Launch the vSphere 6.x or 7.x Certificate Manager - Login to VCSA SSH using root account then run this command...

Apr 2, 20224 min read

Guide to Upgrade vCenter to 7.x, Roll Back and Fix to known Issues I encounter during the upgrade

The purpose of this is to provide the implementation steps to upgrade vCenter to 7.0U2 Before performing the upgrade verify the...

Apr 1, 20221 min read

How to change VM NIC Type to VMXNET3 without replacing MAC Address?

Steps: - Create Snapshot to the VM server - Run this command to check the current NIC Type - Get-VM VMNAME | get-networkadapter - Run...

Mar 31, 20222 min read

PowerCLI Installation Guide

What is PowerCLI? vSphere PowerCLI is a powerful command line tool that lets you automate all aspects of vSphere management, including...

Mar 29, 20221 min read

Convert ova to ovf file using VMWARE OVF TOOL

What is OVA and What is OVF? - Open Virtualization Format (OVF) is an open standard for packaging and distributing virtual appliances....