Home > Storage > PowerScale (Isilon) > Product Documentation > Cloud > Dell PowerScale: CloudPools and Amazon Web Services > Nondisruptive upgrade support
When a cluster that has been using CloudPools 1.0 is upgraded to OneFS 8.2.0 or higher, a new CHANGEOVER process is initiated automatically after the upgrade commit. The process ensures a smooth transition from CloudPools 1.0 to CloudPools 2.0. CloudPools 2.0 is ready to use once the upgrade state is committed. For more information about upgrade states, refer to the white paper PowerScale Non-Disruptive Upgrade (NDU) Best Practices.