Upgrading vCenter Server Appliance to Version 5.5
If there are vCenter Server Appliances (VCSAs) managing subsets of your environment, then the upgrade of the appliance is necessary prior to upgrading the ESXi hosts managed by it. There is no concept of an in-place upgrade of a VCSA to a major version, meaning that the upgrade can't really be directly applied to the appliance itself. A new appliance is deployed and the configuration is imported from the existing appliance.
You can download the latest available VCSA 5.5 appliance from VMware's download portal:
- Go to the download page using the following URL (https://my.vmware.com/web/vmware/downloads).
- Click on the Download Product hyperlink corresponding to VMware vSphere.
- On the Download VMware vSphere ...
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