The API Gateway server patch management process uses a standard install process for Linux systems involving unpacking RPM's (untar) and running them concurrently. After the Platform update is applied, an Application update is uploaded and then installed. After this is complete, a MySQL DB upgrade is run, which will update the version information for all the patches applied.
You may wish to expand the logical volume to support more storage capacity of the Gateway Appliance. Please review Article Id: 42624 for this instruction.