troubleshooting

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

VMware VCSA Supported protocol for proxy server is HTTPS

VMware VCSA Supported protocol for proxy server is HTTPS I’ve been working with someone recently who has not been able to download packages to virtual centre via HTTPS because their existing proxy works via HTTP. Wait back up a second, can we create https connections via http proxy servers? Short answer is yes. and I’m going to paraphrase user cyker from a stack overflow thread as to how. “HTTPS uses SSL/TLS to ensure end-to-end security,… Read More »VMware VCSA Supported protocol for proxy server is HTTPS

Appliance Down! Emergency Mode! failed to start file system check

Appliance Down! Emergency Mode! failed to start file system check. My lab had a little hi-cough the other day, I’d managed to fill the management vSAN partition…  Never a good idea.  Whilst I managed to recover space and bring VMs back online one VM greeted me with the following screen… Luckily I’d seen this behaviour before and knew roughly what to do – something I was able to validate by reviewing this KB article.  What… Read More »Appliance Down! Emergency Mode! failed to start file system check

Adding Virtual Machine advanced settings to custom properties in vRealize Operations

  • simon 

Adding Virtual Machine advanced settings to custom properties in vRealize Operations I’ve been working with a customer recently that want to display advanced settings from a virtual machine in vRealize Operations manager.  If you didn’t know vROPs does a fantastic job of collecting object settings and presenting them back so they can be tracked in dashboards, views and reports or used for troubleshooting. But the adaptors don’t collect everything, for example if you create a… Read More »Adding Virtual Machine advanced settings to custom properties in vRealize Operations

vRealise Orchestrator 8.0.1 installation errors

vRealise Orchestrator 8.0.1 installation errors As part of something else that I’ve been working on I needed to install vRealize Orchestrator (vRO) into the lab.  I’d not installed the latest versions of vRO but I was aware that the architecture had changed from earlier versions, and was now built upon kubernetes. vRO Deployment vRO is deployed from an OVA downloaded from the MyVMware portal, the file for vRO 8.0.1 has the catch name of “O11N_VA-8.0.1.7355-15296158_OVF10.ova”. … Read More »vRealise Orchestrator 8.0.1 installation errors