Category: VMware

Blog ESXi VMware vSphere
4. December 2023

vmkX not found in the current netstack

A little post for in between, in case you want to do a vmkping with your vMotion vmkerneladapter and get the following error message: The reason for this error message is that the TCP/IP stack of vmk4 has been set to vMotion. If I build a vmkerneladapter and want to use the vMotion service, I still leave the TCP/IP stack set to default and activate […]

Blog VMware vSphere
24. October 2023

VMware vCenter Offline Upgrade

There are several reasons for upgrading a VMware vCenter offline. In my case, it was a dark site where the customer had no way to connect the vCenter to the Internet. This has the consequence that in the VAMI interface under URL updates is not displayed. What now? Well, there is of course a way to update the dark site vCenter offline. Let’s get started […]

Blog Dell Dell XR4000 VMware vSAN vSphere
21. September 2023

Dell XR4000 and VMware vSphere – NextGen Edge Solution

Last year at Dell Technologies World 2022, my mentor Marc Huppert (VCDX 181) and I came across the Dell XR4000 at the Solutions Expo. I mean we have seen it all before, servers, storage and networking but this edge solution from Dell blew us away! CEO Michael Dell said in his keynote that by 2025, more than 50% of IT deployments will happen in the […]

Blog Dell Dell VxRail VMware vSphere
19. September 2023

Configuring LACP on Distributed Switches – VMware vSphere 8 & Dell VxRail

With Link Aggregation Control Protocol (LACP) support on a vSphere distributed switch, you can connect ESX hosts to physical switches using dynamic link aggregation. Multiple link aggregation groups can be created on a distributed switch to aggregate bandwidth from physical NICs to ESXi hosts connected to LACP port channels. Most of you have probably created a LACP configuration on a distributed switch in various customer […]

Blog VMware vSAN
25. August 2023

vSAN hyperconverged cluster configuration alarm ‘Host compliance check for hyperconverged cluster configuration’

I worked with a customer today to add 2 more nodes to their VMware vSAN Streched Cluster. Which worked for now, but we got a warning under the cluster summary: We have added the new nodes manually, it must be said at this point now. Which in turn leads to this warning, because the customer has configured its VMware vSAN Streched Cluster intially via Quickstart. […]

Blog Dell Dell PowerEdge ESXi VMware
21. August 2023

Lost connectivity to the device naa.61xxxxxx backing the boot filesystem 

Today I noticed that my ESXi 04 displays the following information: Lost connectivity to the device naa.61xxxxxx backing the boot filesystem /vmfs/devices/disks/naa.61xxxxxx. As a result, host configuration changes will not be saved to persistent storage. So let us open a SSH session to have a look at the mentioned device by using following command: As we can see, there are some Failed Operations, to get […]

Blog VMware vSAN
10. August 2023

Invalid virtual machine configuration. Object policy is not compatible with datastore space efficiency policy configured on the cluster

Today I have configured a 2 node vSAN Streched Cluster with a customer in their existing vSphere environment. For this we created our own cluster, integrated the hosts accordingly into the existing virtual distributed switches and configured HA & DRS. Then it was about the vSAN configuration, for this the customer has 2 disk groups per host with 1x 1.6TB cache and 3x 3.84TB capacity […]

Blog VMware vSphere
5. July 2023

Performing a Reconfigure for vSphere HA operation on a primary node may cause an unexpected virtual machine failover

Yep, the Warning Message is that long! 😀 This is what I got from a customer, their vSphere Skyline Health was showing the above mentioned Warning: *Sorry for the poor quality picture. 🙂 If you manually reconfigure the primary HA host for HA, this forces the secondary host to find a new primary host. The newly elected primary host places the VMs that were running […]

Blog VMware vSphere
21. June 2023

How to Update VMware VCSA 8 Offline via patch ISO

A few days ago I had the challenge to upgrade my customers vSphere environment offline. So I thought, yep, you have to do a blog post about that. There are indeed situations where a direct upgrade via internet is not possible e.g. in darksites, security customers and many more. But also for environments where the internet connection might not be reliable enough. In such cases […]