Upgrade from an older CMS software release and retain the same hardware server or virtual machine. You can do this by backing up the customer data, installing the new CMS server, and then migrating the customer data.
Platform Upgrades:
Upgrade from an older CMS software release and install a new customer-provided VMware server or an Avaya Solutions PlatformASP 130 R6 server. You can do this by backing up the customer data, installing the new CMS server, and then migrating the customer data.
Base Load Upgrades:
Simplified upgrade process, which is available for CMS upgrades within the same minor release and other approved scenarios. You will use a software disc or a CMS ISO image file to install the new Linux OS and CMS software.
Upgrades to R21
Perform a full software or platform upgrade from Release 20.0 to Release 21.0.
You can upgrade directly to CMS R21.0 from R16.x, R17.x, R18.x, R19.x and R20.0. Contact your Avaya account team if you need to upgrade from a CMS release older than R16.x.
Upgrades on Avaya Enterprise Cloud™ are also supported.
Software upgrades
The software upgrade process reuses existing CMS hardware that supports the new CMS software. The following models of hardware support CMS Release 21.0:
Avaya Solutions PlatformASP 130 R6 servers.
Customer-provided VMware servers.
Customer-provided KVM servers.
Customer-provided Amazon Web Services (AWS) servers.
Customer-provided Google Cloud Platform (GCP) servers.
Additional information
For more information about upgrades, see the following documents:
