The storage server might be shipped with module-replacement filler panels for storage drives and PCIe cards. These filler panels are installed at the factory and must remain in the storage server until you replace them with a purchased option.
Before you can install an optional storage server component into the storage server, you must remove the filler panel from the location into which you intend to install the component. When you remove a storage drive or a PCIe card from the storage server, you must install either a replacement for the component removed or a filler panel.