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Updated Dashboard for VMware Community Homelabs using Dashimo

10.09.2024 by William Lam // 1 Comment

While working on some data analysis for an internal project, I was looking for a better way to summarize and provide some visualizations of the raw data for better consumption.

I also wanted to automate this process, so that I could easily build reports or dashboards regardless of the frequency of requests and/or dataset size. After a bit of searching, I came across a very awesome PowerShell Module called Dashimo, which builds on top of another PowerShell Module called PSWriteHTML, which provides a framework for creating HTML reports.

After playing around with Dashimo over the weekend and successfully using it for my internal project, I thought I would update the dashboard I provide today for the VMware Community Homelabs Project, where users from our community can submit their VMware Homelab BOM (Build of Materials) that can benefit the broader community.

I really like the simplicity and ease of use that Dashimo provides and the dashboards that you can build are all interactive, so it is not just a static image. For those interested in seeing Dashimo in action or if you want to check out the new dashboard for the VMware Community Homelabs, you can access it at: https://lamw.github.io/homelab/

Categories // Home Lab Tags // homelab, powershell

Useful NVMe Tiering reporting using vSphere 8.0 Update 3 APIs

10.03.2024 by William Lam // 2 Comments

After successfully enabling the NVMe Tiering feature, which was introduced in vSphere 8.0 Update 3, you can find some useful details about your NVMe Tiering configuration by navigating to a specific ESXi host and under Configure->Hardware and under the Memory section as shown in the screenshot below.


There is quite a bit of information that we can see, so lets break down the individual items that are useful from an NVMe Tiering point of view and the specific vSphere APIs that can be used to retrieve this information.

[Read more...]

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

Quick Tip - Monitoring ESXi remote syslog forwarding

10.01.2024 by William Lam // 3 Comments

When an ESXi host is unable to forward its logs to a remote syslog server, a VMkernel Observation (VOB) is automatically raised by the host and it can be used to proactively alert administrators, which has been possible since ESXi 5.0 .... per this blog post from 2012 after some Googling! 😅😂

While I was pretty confident the behavior described above still holds true for our latest ESXi 7.x and 8.x releases, I wanted to be sure before responding back to a colleague. I deployed the latest ESXi 7.0 Update 3q and ESXi 8.0 Update 3b and after configuring syslog forwarding, I disabled the NIC on my Aria Operations for Logs to simulate a network disconnect and I saw the following log entry in /var/log/vobd.log

2024-09-28T21:12:00.298Z: [UserLevelCorrelator] 7452916537us: [esx.problem.vmsyslogd.remote.failure] The host "192.168.30.62:514" has become unreachable. Remote logging to this host has stopped.

By default, ESXi will attempt to retry the remote syslog connection after the configured timeout (default 180 seconds), which is a relatively new configuration option that is available with ESXCLI (esxcli system syslog config set --default-timeout XX).

[Read more...]

Categories // Automation, ESXi, vSphere 7.0, vSphere 8.0 Tags // ESXi, syslog

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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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Recent

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