IBM 9009-41A Manual page 28

Figure 11. Partially removing the front drives and fillers
a) Push the drive tab (A) to release the drive lever (B).
b) Using the drive lever, pull the drive and filler about 2.5 cm (1 in) from the system.
c) Repeat steps "5.a" on page 14 - "5.b" on page 14 for the other drives and fillers.
6. Label the front SAS cables. Press the cable connector latch and disconnect the front SAS cables from
the disk drive backplane as shown in the following figure.
14 Power Systems: Power Systems: Drive backplanes