Following are the prerequisites for upgrading System Manager from Release 7.1.3.x, 8.0.x, 8.1.x, or 10.1.x to Release 10.2.x.
To upgrade a virtual machine, the host or the vCenter must have a valid certificate. The SAN field must contain the IP/FQDN of the host or the vCenter. If the SAN field is not available, then the CN field must contain the IP/FQDN of the host or the vCenter. You must ensure that the certificate is not expired.
Ensure that ESXi is running on Release 7.0 and later.
You must have additional 10 GiB of space on the host to take snapshot of virtual machine.
You must have additional 15 GiB of space on the host where Solution Deployment Manager client is installed.
System Manager must be in the Running state. Ensure that System Manager web console is accessible. You can confirm this by logging on to the System Manager web console.
If System Manager is deployed from the same Solution Deployment Manager client, Current Action Status must be Successful.
In relation to Avaya Aura® Messaging, note the following points. These points apply to Avaya Aura® Messaging only. Avaya IX™ Messaging, also known as Officelinx, is not impacted.
Starting with 10.2.x, if AAM is managed by System Manager then before upgrading System Manager, clean the AAM data from System Manager.
You must administer mailboxes natively in the AAM Management interface.