troubleshooting
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VMware
VMware vSphere ESXi Storage Performance Troubleshooting
Recently, I was troubleshooting an issue with a production VMware vSphere cluster that was presenting with severe performance issues across the board. After triaging the symptoms of the performance issue it pointed to storage as being the culprit for the…
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Windows
Troubleshooting Windows Access Denied Errors
Windows administrators can spend a massive amount of time poring over logs and investigating error messages. Trying to figure out why Windows is throwing certain errors can be frustrating and time consuming. I was reminded of this frustration recently in…
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Networking
How to View Network Connections in Linux with IFTOP
There are a myriad of network utilities in both the Windows and Linux world. If you are working with a Linux distribution and you are needing to view network connections being made to and from your Linux server, there is…
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VMware
Troubleshooting Slow VMware Virtual Machine Power On Time
There comes times when you have a single ESXi host that you wish you didn’t! There are certain times when something that is simply for development or staging that supposedly isn’t production, but management may view it as production and…
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VMware
Runecast Analyzer 1.7 vSAN Support Visualization Improvements and New Web Plugins
When it comes to supporting, maintaining, and operationalizing a VMware vSphere environment, everything needs to be carried out in accordance with best practices. VMware is the expert of their own product for obvious reasons and following what they document as…
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vSAN
Selected host is an external witness for another vSAN Stretched cluster
As VHT readers have seen lately, I have been doing a lot of home lab work with VMware vSAN and thoroughly enjoying it. The advancements that have been made in vSAN 6.6 and patch levels have truly made vSAN a…
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vSAN
Configure vSAN Error Disk with VSAN uuid failed to appear in CMMDS
In configuring a 2-node VMware vSAN cluster with a Witness host I ran into a strange issue that took a bit of head scratching and Googling to figure out. However, the solution was actually fairly simple. In attempting to configure…
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VMware
Delete VMware Distributed Virtual Switch The Resource Is In Use
Recently, in working with the home lab environment, moving hosts around, playing around with various networking, etc, I ran into an issue with a distributed virtual switch (DVS) I had configured. The problem started with a host that was forcibly…
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Windows 10
Installing Windows 10 Pro for Workstations
Recently, Microsoft released the Windows 10 Pro for Workstation version of Windows 10 to the fall lineup of Windows 10 editions. This is a rather interesting move for Microsoft. It provides an edition of Windows 10 that is especially geared…
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vSphere 6.5
What is VMware vRealize Log Insight for vCenter Server
Let’s face it, syslog collection is not as exciting as other things we would like to be doing as administrators, but often it is a necessary evil that we have to face when troubleshooting or trying to identify potential problems…
