IBM 9009-41A Manual page 35

Figure 18. Reconnecting the power cable and the signal cable to the disk drive backplane
5. Using your labels, reconnect the front SAS cables to the disk drive backplane as shown in the following
figure.
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 21