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VMware Releasing VMware ESXi 8.0 Update 3h and VMware vCenter 8.0 Update 3h

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Latest patches from VMware/Broadcom has been released for your vSphere 8 infrastructure. Mainly bug fixes, but there are also some new features that are definitely worth to update (you have to patch to fix bug fixes anyways). One of them is a fact that when you upgrading the vCenter Server Appliance (VCSA) – (NOTE: If you do so ofcourse) to the 9.x, apparently, they were mostly generic message error messages. VMware/Broadcom fixes that by adding more personalized messages within this section so you can identify easier the error you're getting.

Also another new feature which certainly will make the life of admin a bit easier is automatic renewal of certificates. An SSL certificates that the VMware Certificate Authority (VMCA) issues for vCenter and ESXi of version 8.0 Update 3 and later, are now automatically renewed near the expiration date.

In details, vCenter machine SSL certificates are automatically extended by 2 years when the expiration date is in less than 5 days. SSL certificates on ESXi hosts that support non-disruptive certificate renewal are automatically extended by 5 years when the expiration date is in less than 10 days. (Note: you must set the VMCA certicate mode to vmca). There are other improvements which I copied below to the quotes from the release notes.

Links:

Quote from the Release Notes:

Enhanced vCenter upgrade pre-check error messages:
vCenter 8.0 Update 3h adds several enhanced upgrade pre-check error messages instead of a generic error message in the Virtual Appliance Management Interface. Messages for the following conditions provide specific information for the issue:
  • expired vCenter MACHINE_SSL certificate
  • available disk space
  • stopped vCenter core services
  • mismatch in the vCenter hostname and PIND
  • failure of the service startup for vCenter High Availability (VCHA) in instances with no active VCHA
Default log partition of 50 GB: With vCenter 8.0 Update 3h, the default size of the log partition is 50 GB for any vCenter deployment.
  • Auto-renewal of vCenter Machine SSL and ESXi SSL Certificates – Starting with vCenter 8.0 Update 3h, SSL certificates that the VMware Certificate Authority (VMCA) issues for vCenter and ESXi of version 8.0 Update 3 and later are automatically renewed near the expiration date. vCenter machine SSL certificates are automatically extended by 2 years when the expiration date is in less than 5 days. SSL certificates on ESXi hosts that support non-disruptive certificate renewal are automatically extended by 5 years when the expiration date is in less than 10 days. If the VMCA certificate mode is set to custom, auto-renewal does not work, and you need to change the mode to vmca to enable the feature.

Configure advanced settings

To set the VMCA certificate mode to VMCA in vSphere 8, you need to configure the advanced setting vpxd.certmgmt.mode in vCenter Server. This setting determines how vCenter manages certificates for ESXi hosts.

  1. In the vSphere Client, navigate to the vCenter Server instance you want to configure.
  2. Select the Configure tab.
  3. Under Settings, select Advanced Settings.
  4. Click Edit Settings.
  5. In the Name field, enter vpxd.certmgmt.mode.
  6. In the Value field, set the value to vmca to enable VMCA-based certificate management.
  7. Save the setting and restart the vCenter Server services to apply the change. This can be done using the command line with service-control –stop –all && service-control –start –all.

Setting the mode to vmca ensures that vCenter Server uses its built-in VMware Certificate Authority (VMCA) to manage and provision certificates for ESXi hosts. This is the default and recommended mode for ease of management, as it allows vCenter to automatically handle certificate renewal and distribution across the environment. Note that if you previously used a custom certificate mode, changing to vmca will cause vCenter to overwrite existing custom certificates on the ESXi hosts during the next certificate refresh.

Link to the VMware KB article

The End of General Support for VMware vSphere 8.0 is scheduled for October 11, 2027. Following this, Technical Guidance will continue until October 11, 2029. After these dates, vSphere 8.0 will no longer receive updates, bug fixes, or official support from VMware. It seems like a lot of time, but hey, if you plan not to follow the pricing hikes from Broadcom and planning to leave somewhere else, remember that time to transition isn't just V2V, it's also the preparation, re-thinking of new architecture, rethinking the processes etc, etc.

Final Words

VMware keeps your infrastructure safe while you can still have access to updates and patches. The last opportunity to purchase perpetual licenses for VMware vSphere 8.x was in early 2024, as VMware ceased selling perpetual licenses for its data center products effective January 15, 2024. Customers who had active Support and Subscription (SnS) contracts could still upgrade their existing perpetual licenses to vSphere 8.x during this window, but no new perpetual licenses are available for purchase. After this date, all new licensing is subscription-based only.

We're heading to the end of 2025 and in one of my next posts I'll try to recap the 2025 etc. Stay tuned -:).

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About Vladan SEGET

This website is maintained by Vladan SEGET. Vladan is as an Independent consultant, professional blogger, vExpert x17, Veeam Vanguard x11, VCAP-DCA/DCD, ESX Virtualization site has started as a simple bookmarking site, but quickly found a large following of readers and subscribers.

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