Introduction It’s been a bit quiet lately on the blog! However that changes now that I’ve found a new bug in VMware Cloud Director (VCD). The bug is not yet known nor is there a KB for it, however I am here to help. Lately we’ve encountered a situation in Read more…
Recently I upgraded a vSphere 7 environment to version 8. This left me with a vCLM baseline which was no longer applicable to any of the ESXi hosts. However I could not delete it. The option to detach the baseline from the cluster was grayed out. The baseline itself shows it was intended to install a host extension for NSX-V. And the option to remove the baseline entirely is also grayed out. This post describes the underlying issue and how to resolve it.
Introduction The other day we were finding us in the position to completely re-install a couple of vSphere ESXi hosts which were once part of a larger VMware vSAN cluster environment. Usually this does not take that long to do since nowadays the cluster wizard inside the vCenter Server does Read more…
In my previous post I explained how to quickly interpret a network capture on ESXi by using pktcap-uw and tcpdump-uw. This works great to get some information at a glance. But what if you require some further analysis? Well, then Wireshark is probably your tool of choice. Check out the rest of this blog post to learn how to set up remote capturing so you don’t need temporary storage on ESXi for your capture files.
As a vSphere admin you are sometimes tasked with investigating network issues. You don’t always have VM access so you need to diagnose at the ESXi level. Now as some of you may know quickly gaining insight in VM network traffic by capturing it on the ESXi level is a rather complex task. The tool at your disposal for capturing VM traffic is called pktcap-uw and one of it’s biggest shortcomings is that it doesn’t interpret the packets.
A feature that was introduced in vSphere 7 is the ability to use pcap (tcpdump) filters with pktcap-uw. One of the use cases where this can be useful is filtering for TCP control bits.
The nested ESXi appliances that William Lam provides to the community are great resources for testing. But what about interoperability? Can you run a nested ESXi 7 VM on a ESXi 6.7 server? Unfortunately the answer is; it depends.
Recently I found my self having to recover a VM that had most of it’s files deleted. They were removed by a script that was intended to clean up a staging datastore. Unfortunately the VM in question was left on that staging datastore and the script did it’s magic. The Read more…
Introduction It’s been a while since I’ve posted a blog. We’ve been extremely busy on our day to day jobs, but that does not mean that we are losing focus or that we don’t have anything to write about! Today I got another great quick blog for you guys surrounding Read more…
Today I had an experience that was not very different than some of the ‘I was today years old’ memes which are floating on the web. I was working on a script to detach a LUN on all hosts within a cluster when I stumbled on a contribution from LucD Read more…