After putting my NAS in a separate storage VLAN I noticed that my network throughput was slow to and from the NAS. The throughput of a simple file copy from a windows laptop (wired at 1 GbE) to a SMB share on the NAS was only 17,7 MB. The Windows laptop was on a different VLAN then the NAS. After …
Continue ReadingFor a standalone ESXi host I manage the host with the ESXi Embedded Host Client (HTML client). So no vCenter Server is used to manage this host. The standalone ESXi host is 24×7 up and running and has some critical infrastructure VMs for my lab and home environment. The critical VMs are …
Continue ReadingLast week VMware launched vSphere 6.7. In this blog post I show how easy it is to upgrade a vCenter Server 6.x appliance to a new vCenter Server 6.7 appliance using the graphical interface (GUI) upgrade. The GUI upgrade uses a two stage process: Stage 1: Deploy a new vCenter Server 6.7 appliance …
Continue ReadingIn my homelab I use a Ubiquiti EdgeRouter Lite 3-port and UniFi AC Access Points for some time now. After upgrading the Ubiquiti EdgeRouter to the latest firmware (EdgeOS 1.10.1) my WIFI devices where unable to get an IP address. I have different VLANs defined on the EdgeRouter for the WIFI …
Continue ReadingDuring the configuration and troubleshooting of vCenter Server Appliances (VCSA) I maintain a list of commands that I frequently use. This list contains my top configuration and troubleshooting VCSA commands: Enable access the Bash shell: shell.set –enabled true Permanently configure the default …
Continue ReadingI’ve got the opportunity to test Runecast Analyzer. Runecast Analyzer Proactively use VMware KBs, best practices and security hardening guidelines to identify problems in your VMware environment. In this review you find my own experiences of testing Runecast Analyzer. Deployment The deployment of …
Continue ReadingFor a vCenter Server environment I replaced the default SSL certificates with CA signed SSL certificates. The Platform Service Controller (PSC) is configured as VMCA subordinate CA. When opening the vSphere Web/HTML5 Client, Firefox displays the following warning: Your connection is not secure. This …
Continue ReadingWhen implementing a new Cisco UCS environment I encountered the following error when trying to install VMware ESXi 6.5 on a Cisco UCS Blade server with a FlexFlash SD card: Operation failed This program has encountered an error: partedUtil failed with message: “Error: Can’t have a a partition …
Continue ReadingYou probably heard about the two massive security flaws: Spectre and Meltdown (link ). These security flaws allow attackers to access “secure” data by compromising privileged processor memory from major manufacturers, including Intel, AMD, and ARM. So the most CPUs are affected by Spectre and …
Continue ReadingWhen starting one of my VMware ESXi 6.5 lab hosts I was unable to login using the vSphere Host Client. I tried to make an SSH session to the host but got an “Access Denied” message. Using the Direct Console Interface (DCUI) I was able to login using the root account. In the log folder (under …
Continue Reading