I was designing a customer vSAN deployment and I came across the guidelines and formula for calculating the required ESXi Coredump partition size: https://kb.vmware.com/s/article/2147881 Right away, I started working the formula for my customers deployment, when it occurred to me; this is WAY more complicated than it needs to be! VMware actually wants you to take… Continue reading “Setting the coredump partition when using vSAN”
For years, I have dismissed Virtual Machine Hardware version as unimportant. In fact, in this very blog, I may have advocated for leaving VM Hardware Version set at 8, to maintain full compatibility with both the vSphere C# Client and the vSphere Web Client. Unfortunately, thanks to Spectre and Meltdown, things have changed. Updating your… Continue reading “Virtual Machine Hardware Version does make a difference”
Invalid snapshot configurations happen. Mostly, they occur because of problems with storage arrays during snapshot creation/consolidation, but they can also occur if certain process become interrupted (like replication) mid-snapshot. The more heavily you rely on snapshots, the more likely it is you will come across a problem with snapshots. Specifically if you use a product… Continue reading “Invalid Snapshot Configuration”
Photon OS installs by default with DHCP enabled. This is perfect for building and distributing Photon OS OS as a Virtual Appliance, but for most practical applications, you’ll want to set a static IP address. Changing the IP of Photon OS involves a newer, albeit standardized procedure of editing files located in: /etc/systemd/network that will… Continue reading “Setting static IP for Photon OS”
For some users, whether you should or shouldn’t use SSH is a matter for debate. Rather than be hypocritical, I simply acknowledge that most admins will access Linux systems using SSH, and prefer to suggest that using strong passwords or passphrases and secure Management Networks is a more realistic approach to Linux administration.
VMware photon OS is described as “yum compatible.” Yum has been the package manager for all Fedora derivative distros like RHEL and CentOS. Photon OS actually uses Tiny DNF (TDNF), which appears to be a fork of the Fedora DNF package management system.
When I first started using VMware products, ESX Server ran on Red Hat, Virtual Center (vCenter) ran on Windows, there was no such thing as a “Virtual Appliance,” or at least the term had not yet been coined and Photon OS was a long way in the future!
VMware Workstation Pro 14 is a 64-bit Type 2 Hypervisor that is available for Linux and Windows. As a Type 2 Hypervisor, Workstation Pro runs as an application on top of a full Operating System like Windows 10 or Ubuntu Desktop and claims compute and hardware resources from the parent OS, then allocates those resources… Continue reading “Installing VMware Workstation Pro 14”
From time to time, you will find it necessary to transfer files to or from your VMware vCenter Server Appliance (VCSA) or ESXi Servers. If you are working from a Windows desktop or server, there’s no more convenient utility than WinSCP for copying files securely between Windows and Linux Systems. There are a few issues,… Continue reading “Using WinSCP with the VMware vCenter Server Appliance”
I’ve recently spoken with a number of VMware vCenter Server Appliance 6 (VCSA) users that have had issues with the root filesystem of VCSA running out of space. This situation seems to be occurring more often now due to a combination of when the VCSA 6 went mainstream (18 to 24 months ago) and the… Continue reading “VCSA disks become full over time”