When you perform the expansion, the new grid nodes or the new site is added to your existing StorageGRID deployment. You must download an updated copy of the Recovery Package file while the expansion process is completing.
If it is, you must wait until any Cassandra rebuild performed as part of the recovery is complete. You can then proceed with expansion.
During the expansion, you can look at the Expansion Progress section to see the grid configuration tasks required to change the grid topology, along with the status of each task. The set of grid configuration tasks depends on the grid nodes being added, and whether a new site is being added. Some grid configuration tasks might take a significant amount of time to run on a large grid. These grid configuration tasks are run automatically in the background.
Depending on which types of grid nodes you added, you must perform additional integration and configuration steps.