With the release of VMware Cloud Foundation (VCF) 9.1, private cloud maturity has entered a highly programmatic, scalable era. Moving your infrastructure into this release represents more than a routine software lifecycle step, it is a transition into a modernized, modular architecture.
Upgrading to VCF 9.1 eliminates the overhead of managing separate appliances for Lifecycle Manager, during the transition, the existing environment appliances are automatically decommissioned, and their core capabilities are streamlined into a modern, single-appliance architecture.
For VCF 9.0 users, version 9.1 introduces a unified Management Services layer.
We highly recommend checking out our VCF 9.1 Announcement Blog for a deep dive into the new features and licensing model.
Ready to make the jump? This post breaks down exactly how to do it, anchored by a comprehensive, step-by-step upgrade demo.
What’s New
The fleet management and critical control operations were distributed across various separate standalone virtual appliances. VCF 9.1 completely centralizes these functions into a single runtime layer.
The primary structural shift when jumping from VCF 9.0.x to 9.1 involves:
- Consolidating into VCF Operations.
- Bootstrapping the VCF Management Services Cluster, VCF 9.1 introduces VCF Management Services to provide a unified architecture for centralized lifecycle and operational functionalities. The services runtime of the initial VCF instance hosts the fleet-level components responsible for global operations, alongside its own instance-level components. Additionally, every VCF instance includes a dedicated services runtime that hosts instance-level management services for executing local tasks.
Architectural Guardrails: Planning for Success
VCF 9.1 introduces a high degree of configuration validation to ensure smooth upgrade of the environment. Before staging any installation payloads, ensure your pre-upgrade environment meets these strict criteria:
- Strict DNS and Case Sensitivity: VCF 9.1has an improvement in checks with absolute network precision. All existing and new network assignments must utilize strictly lowercase Forward and Reverse DNS records to prevent switchover validation errors.
- Pre-allocated Network Staging: One must pre-allocate dedicated static IP addresses and map Forward/Reverse DNS entries for your new VCF Management Services (configured as an IP Pool using strict CIDR notation in the UI) and the headless VCF License Server.
- Backups: Backing up your VMware Cloud Foundation (VCF) environment requires configuring both native file-based backups for vCenter and SFTP targets for SDDC Manager and VCF Operations(Imaged Based backup).
Visualizing the 9.1 Upgrade
While understanding the high-level milestones is essential for architectural planning, seeing the interface interactions and validation checks in real time makes execution much easier.
To see this entire upgrade workflow in action including a deep dive into the deployment screens, data migrations, and live cluster bootstrapping watch our full video walkthrough below:
VCF 9.0.x to VCF 9.1 – Upgrade Video – Part 1
VCF 9.0.x to VCF 9.1 – Upgrade Video – Part 2
Scope of the Environment
The transition to VCF 9.1 requires a highly orchestrated lifecycle sequence. The table below outlines the specific scope of the environment and the upgrade phases mapped to this 9.0.x to 9.1 evolutionary path.
| VCF 9.0 Component | Upgrade to version 9.1 |
| VCF Operations & Cloud Proxy | Upgrade to VCF Operations 9.1 |
SDDC Manager | Upgrade to SDDC Manager 9.1 |
| Deploy VCF Management Services and License Server | |
| Transfer licenses | |
| VCF Management Service Appliance | VCF Management Services Models |
| NSX Global Manager | Upgrading NSX Global Manager Nodes in a Federated Environment |
NSX Manager | Upgrade vCenter and NSX Manager to 9.1 |
| vCenter | |
| vSAN witness host | Upgrade ESX to 9.1 |
| ESX | |
| NSX Edge & NSX Finalize | Upgrade the NSX Edge Cluster and Finalize NSX Upgrade |
| VMware Tools | Upgrade VMware Tools to 13.1 |
| Virtual machines compatibility | Upgrade Virtual Machines |
| vSAN On-Disk Format Versions | Upgrade vSAN On-Disk Format Versions |
| vSAN File Service | Upgrade vSAN File Service |
This orchestrated transition ensures that your entire stack from operations and control planes down to the underlying compute and networking fabric moves uniformly to the 9.1 runtime baseline. For any product components not listed above, please refer to this link.
Upgrading to VMware Cloud Foundation 9.1
Conclusion: Bringing it All Together
The move to VCF 9.1 is a strategic step toward a programmatic, scalable private cloud. By following the 8-step orchestrated sequence and accounting for the new architectural guardrails like the VCF Management Services layer and refined password standards, customers can transition from 9.0.x with confidence.
Ready to start your transition? Consult the VCF 9.1 Release Notes and verify your hardware against the latest HCL to ensure a future-ready foundation.
Additional resources:
What’s New with vSphere in VMware Cloud Foundation 9.1?
Components in VCF and vSphere Foundation
Upgrading to VMware Cloud Foundation 9.1
Paths to Building 9.1 Environments
VCF 9.1: The Secure, Cost-Effective Private Cloud Platform for Production AI
How to license your environment
Acknowledgements :
Special thanks to Emad Younis & Sujatha David Product Management team.
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