Recently I had to change DNS server in a VMware vSphere vCenter Appliance (VCSA). Normally this works without further issues. This time it was different. vCenter services did not start after changing DNS servers. I describe in this short post what went wrong and how I could fixed it.
These days I had to troubleshoot a problem in a vCenter environment. A few VMs shown with absolute path to vmx file in vCenter inventory. Normally this occurs when a ESXi boots with no connection to its previous mounted storage volumes. VMs located on these volumes are shown like this in inventory. But this wasn’t the case here: VMs were running and no host was […]
These days I had to update a ESXi host using vCenter Update Manager (VUM). Environment is managed by a vCenter 6.7 appliance with embedded VUM. The host I got the error is managed by vCenter but not member of any cluster. After attaching a upgrade-baseline and running the compatibility check, I got the error that vCenter Update Manager cannot copy files to the host.
In an environment I saw this error when backup creates VMware snapshots of three VMs: Warning message on VM on host in datacenter. The guest OS has reported an error during quiescing. The error code was: 5. The error message was: ‘VssSyncStart’ operation failed. IDispatch error #8723 (0x80042413) Facts about the environment: Versions: ESXi version: 6.7.0, 13981272. Guest: Windows Server 2019. VMware tools: 10346 (10.3.10). […]
In this post I will describe how to use PowerCLI to add a trigger and a mail recipient to selected vSphere alarms. This is an excellent example of how PowerCLI can easily be used to do a task in a few moments while needing maybe hours when doing in GUI. A use-case for assigning a trigger and recipient to many alerts can be the implementation […]
When needed, you can configure a proxy server to automatically download VCSA updates in Appliance Management Interface (VAMI) [Port 5480] under Networking –> Proxy Settings. You have the options to configure proxy for HTTP, HTTPS and FTP. When set a proxy server in VAMI, you could see these errors: Error 1 (Syntax error) [HTTP Error in method invocation expected string or bytes-like object] Problem: You have […]