IBM 9009-41A Manual page 131

Figure 105. Reconnecting the NVMe cables
6. If a SAS cable is present, using your labels, reconnect the front SAS cable to the NVMe drive
backplane connector (J1).
Push the connectors in until the latches click. Also ensure that the front SAS cables are fully seated
into the SAS controller card.
Drive backplanes for the 9009-41A, 9009-41G, 9009-42A, 9009-42G, or 9223-42H 117