Category: VMware

Blog VMware vSphere
6. August 2025

vSphere 8 Update fails: Error in method invocation Timout happens while sending message to microservice

This error occurs due to an outdated PID file of the update microservice or an error during staging of corrupted media. Strangely enough, I requested the update via the VAMI interface (port 5480), so it may have been corrupted during download. As always, there is a solution, and this time there are even three. The first solution is to restart vCenter, but this did not […]

Blog VMware
1. August 2025

Looking for a specific VMware Build ISOs @ Broadcom Support Portal?

One of my esteemed colleagues asked me today about a specific vCenter version and told me that, in his view, he can only download the major release of 8.0 U3. The reason why my colleague cannot see the specific versions is that he looked for the ISO images under Product in the VMware vSphere product category, but they can be found under Solutions. Once you […]

Blog VMware vSphere
21. July 2025

Failed to move a VM out of maintenance mode candidate host since the VM is in manual mode!

The vSphere 7 to 8 upgrade (and soon to vSphere 9) series continues successfully, this time I had the above-mentioned challenge during the Check Compliance or Run Pre-Check State inside Image Based Patching. The error message says that there are VMs that cannot be migrated Fully Automated, which is very useful in the context of Image Based Patching. You want to use the luxury of […]

Blog VMware vSphere
18. June 2025

Cannot download VIB: “This might be because of network issues or the specified VIB does NOT exist or does NOT have a proper ‘read’ privilege set. Please make sure the specified VIB exists and is accessible from vCenter”

Keeping an eye on the clock and sensitizing my customer (vSphere 7 EOL, Oct 25), I was on a vSphere 7 environment today where we wanted to install the latest patches. However, I was confronted with the error message above. Let’s fix this real quick, first we need SSH access to our VCSA, via the Shell Command and Stop the VMware Update Manager Service: Now […]

Aria Blog Dell PowerEdge VMware
13. December 2024

Add Dell PowerEdge Servers to VMware Aria Operations

In my previous blog post, I described how to prepare your Dell PowerEdge servers for integration with VMware Aria Operations for comprehensive dashboards and monitoring. This time we will talk about how to configure/add them to Aria Operations. First, get the Dell PowerEdge Management Pack from Dell/Broadcom and then log into your Aria Operations instance. Go to Administration -> Integrations -> Repository. There you will […]

Aria Blog Dell Dell PowerEdge
12. December 2024

Configuring SNMPv3 on Dell iDRAC9 for VMware Aria Operations

I am currently working a lot with VMware Aria Operations and the matching Dell Management Packs that are available. One of the most interesting is the integration of PowerEdge Servers, from which you can view various alarms about: These are exactly the informations I want to integrate into Aria Operations to get/build a dedicated dashboard. In order to send these informations to Aria Operations, SNMPv3 […]

Blog PowerCLI VMware
4. December 2024

PowerCLI: Connect-VIServer The SSL connection could not be established

I wanted to make my life easier again in a customer situation and use my PowerCLI scripts to shorten repeating tasks. The customer had given me an Ubuntu OS notebook and I installed PowerShell/PowerCLI on it. When I tried to use my script, I got the following error message: So it’s all about certificates, let’s take a look at our current PowerCLI configuration: As you […]

Blog VMware vSAN
3. December 2024

The Witness host must not be part of a vSAN enabled Cluster

As part of a vCenter 7 to a brand new vCenter 8 migration, the vSAN clusters had to be moved in addition to the normal clusters. When we disconnected the vSAN Witness Appliance from the old vCenter in the last process and then wanted to add it to the fault domain in the new one, we were confronted with the following error message: Although these […]

Blog VMware vSphere
3. December 2024

Host prevents entering Maintenace Mode: There are insufficient memory resource on standby hosts

In a vSphere 8 – 2-Node Cluster Update I have had to deal with the following message during the Check Compliance process: High Availability (HA) Admission Control is enabled and set to specify a failover host, which is reserved for HA failover purposes. However, in a 2-node cluster you ultimately only have the 2nd host and if the resources on this host are not sufficient, […]

Blog VMware vSphere
30. November 2024

A problem with one or more vFAT bootbank partitions was detected. (PSOD Alarm!)

During a VMware vSphere 7 to 8 upgrade, more precisely after the compliance check, I was confronted with the above error message. In this blog post I would like to show you how to solve the problem. Corrupt vFAT partitions already existed in vSphere 6.7 times and unfortunately they also appear today with vSphere 8. The problem? If you go through with the upgrade in […]