troubleshooting

PowerShell CloudConfig and vRealize Cloud Assembly

Adventures with PowerShell, CloudConfig and vRealize Cloud Assembly This week I had a customer with some errors trying to use the following componenets together: PowerShell, CloudConfig, and cloudbase-init within a Cloud Assembly blueprint.  To put it bluntly, the code was not running correctly.  The customer could run the code locally without any issue.  However, as soon as the same PowerShell was included within a CloudConfig element it did not work and they could not understand… Read More »PowerShell CloudConfig and vRealize Cloud Assembly

PowerShell – Discover Secure boot enabled Hosts

PowerShell – Discover Secure boot enabled Hosts As sometimes happens someone from the community got in touch to ask me the question below. “I’m currently banging my head against the proverbial trying to understand the Get-EsxCli command. What I am after is a listing of Secure-boot Enabled or disabled against all are ESXi hosts using PowerCli. Normal esxcli would be SSH to each ESXi host and then run: esxcli system settings encryption get…” As luck… Read More »PowerShell – Discover Secure boot enabled Hosts

Unable to access public load-balanced IPs on Azure Tanzu Kubernetes Grid cluster

  • simon 

This week I spent some time working through the excellent guides from Saintdle to build new TKG management and workload clusters in Azure. I could write up my own how to and deployment guide here, However, Dean has done a fantastic job of documenting the deployment of the TKG resources within Azure, look no further if you are looking for a guide. I deployed TKG 1.4 into Azure and the focus of my article is… Read More »Unable to access public load-balanced IPs on Azure Tanzu Kubernetes Grid cluster

What is the limit on how many virtual machines that can be deployed at once?

  • simon 

What is the limit on how many virtual machines that can be deployed at once? This came up in conversation, where we were considering where to place template storage and what the implications might be behind various choices. which leads to… Limits on Simultaneous Migrations The answer for how many virtual machines can be deployed at once, is closely coupled with the limits on simultaneous migrations.  This is because simply put the operations are very… Read More »What is the limit on how many virtual machines that can be deployed at once?

VMware Virtual Machines MAC addresses

  • simon 

VMware Virtual Machines MAC addresses Occasionally I feel old, today was one of those days.  The feeling snuck up on me during a conversation about MAC addresses. Someone mentioned a MAC address starting 00:50:56 and I said with confidence that it was a VMware virtual machine, which prompted the response “how do you know that?”.  Which leads us to the topic of this blog post, how did I know that? MAC addresses are not random. … Read More »VMware Virtual Machines MAC addresses

vSphere HA Advanced Settings

  • simon 

vSphere HA Advanced Settings to Consider Working in the field I come across a lot of VMware products configurations, in addition to working directly advising how to meet architectural and business goals.  After conversations this week I’d like to draw attention to two small but often overlooked configuration settings for vSphere HA and one that folk might simply have forgotten about. For those that are not aware, vSphere HA provides high availability for Virtual Machines. … Read More »vSphere HA Advanced Settings

Deploy Skyline Health Diagnostics in Workstation or Fusion

I always get interesting questions, todays was ‘Can I Deploy Skyline Health Diagnostics in Workstation or Fusion?’ Looking through the documentation it is certainly not listed as a requirement to run on ESX or any other specified platform; “Software Requirement Photon OS 3.0 Revision 2 ISO Distribution (Minimal Version) Hardware Requirements Recommended settings for vSphere virtual machine 4 vCPUs 16 GB RAM 150 GB space for the hard disk A port group with network connectivity… Read More »Deploy Skyline Health Diagnostics in Workstation or Fusion

Skyline Health Diagnostics

  • simon 

Skyline Health Diagnostics I’m aware that during any incident with VMware estates one issue that adversely impacts teams particularly those that work in secure environments is the capability to share logs expediently with VMware Global Support Services.  In some circumstances this could be due to the need for logs to have information redacted, data export restrictions or there is no physical connection to upload logs. I’m pleased to highlight that help is now at hand! … Read More »Skyline Health Diagnostics

NSX-T password expired SDDC Manager rotation fails

  • simon 

NSX-T password expired SDDC Manager rotation fails With VMware Cloud Foundation password management of SDDC components is handed off to the SDDC manager.  The SDDC manager can rotate the passwords for VMware components such as ESXi, Virtual Centre and NSX-T.  A very useful feature and a great way. of keeping admin and root accounts secure in the infrastructure.  So what happens when the rotation is perhaps missed and the NSX-T passwords expire? This is exactly… Read More »NSX-T password expired SDDC Manager rotation fails

More vSphere HealthCheck Remediation scripts

More vSphere HealthCheck Remediation scripts If you follow this blog you’ll know that I like to keep track of useful snippets and scripts that can be used to fix any issues flagged during environment health checks.  You can find other healthcheck remediation scripts to Disconnected connected CDs, Set DCUI and ESXi Shell interactive timeouts and configure VM isolation settings here.  Scripts on how to detect thick or thin layouts for VMDKs can be found here.… Read More »More vSphere HealthCheck Remediation scripts