Finally, as new versions of VoltDB become available, you will want to upgrade the VoltDB software on your database cluster. The steps for upgrading the VoltDB software on a database cluster are:
Place the database in admin mode (voltadmin pause).
Perform a manual snapshot of the database (voltadmin save).
Shutdown the database (voltadmin shutdown).
Upgrade VoltDB on all cluster nodes.
Start a new database using the voltdb create option and starting in admin mode (specified in the deployment file).
Reload the stored procedures and schema (with the sqlcmd load classes and file directives).
Restore the snapshot created in Step #2 (voltadmin restore).
Return the database to normal operations (voltadmin resume).