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VM snapshot retention-based removal in vSphere 8.0 Update 3

07.01.2024 by William Lam // 4 Comments

VM snapshots are an extremely useful feature in vSphere but they can also be miss-used and retained for much longer than they should, sometimes weeks, months and even years! Sadly, having a forgotten VM snapshot for a year or longer is not actually as rare as you might expect and I have definitely heard some interesting stories from our field and customers.

While cleaning up a recent VM snapshot, I noticed a new option in the delete all snapshot workflow that now allow users to specify the age of the snapshot to remove which is a new feature in the latest release of vSphere 8.0 Update 3.


This makes it easy for administrators to quickly delete old snapshots without having to write any automation, which is typically how most users manage snapshot retention period including an event-driven approach using the VMware Event Broker Appliance (VEBA) solution.

[Read more...]

Categories // Automation, vSphere 8.0 Tags // snapshot, vSphere 8.0 Update 3

Retrieving CPU Microcode revision from ESXi in vSphere 8.0 Update 3

06.28.2024 by William Lam // Leave a Comment

Whether you are applying a CPU microcode update through a hardware vendor's BIOS update or an ESXi update/upgrade, verifying the CPU microcode revision within ESXi is not as easy as it could be.

Today, if you wanted to get the current CPU microcode revision from ESXi, you would need to enable SSH and then use the vsish interface to retrieve this information by running the following command:

vsish -e cat /hardware/cpu/cpuList/0 | grep "microcode" -A2

While you can retrieve the CPU microcode revision, the method and required interfaces was less than ideal, especially at scale. Given ESXi already exposes a number CPU attributes via the ESXCLI interface, which includes programmatic access when using PowerCLI, I thought it would be a nice feature to also include the CPU microcode revision as part of the output and had filed an internal feature enhancement a few years back.

[Read more...]

Categories // Automation, ESXCLI, ESXi, vSphere 8.0 Tags // ESXi 8.0 Update 3, vSphere 8.0 Update 3

Nested ESXi Virtual Appliance & USB Network Native Driver for ESXi for vSphere 8.0 Update 3

06.25.2024 by William Lam // 66 Comments

With the release of vSphere 8.0 Update 3 now generally available (release notes and direct download links below):

  • ESXi
    • ๐Ÿ“’ https://docs.vmware.com/en/VMware-vSphere/8.0/rn/vsphere-esxi-803-release-notes/index.html
    • ๐Ÿ’ฟ https://support.broadcom.com/group/ecx/productfiles?displayGroup=VMware%20vSphere%20-%20Standard&release=8.0&os=&servicePk=202631&language=EN&groupId=204419
  • vCenter
    • ๐Ÿ“’ https://docs.vmware.com/en/VMware-vSphere/8.0/rn/vsphere-vcenter-server-803-release-notes/index.html
    • ๐Ÿ’ฟ https://support.broadcom.com/group/ecx/productfiles?displayGroup=VMware%20vSphere%20-%20Standard&release=8.0&os=&servicePk=202631&language=EN&groupId=204421

I know the first question I will get (which I already have already :P) is what about updated versions of the Nested ESXi Virtual Appliance and USB Network Native Driver for ESXi? ๐Ÿ˜…

[Read more...]

Categories // Automation, ESXi, Nested Virtualization, vSphere 8.0 Tags // ESXi 8.0 Update 3, vSphere 8.0 Update 3

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William is Distinguished Platform Engineering Architect in the VMware Cloud Foundation (VCF) Division at Broadcom. His primary focus is helping customers and partners build, run and operate a modern Private Cloud using the VMware Cloud Foundation (VCF) platform.

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