IBM e Server i Series Manual page 16

__ 10. Find the package that contains the new disk unit assembly and remove it
__ 11. Squeeze and pull the handle out toward you before you install the disk
10
43xx Disk Unit, 71xx Disk Expansion Unit, 71xx Disk Unit Enclosure V5R3
from the static-protective package. Write the serial number (use the last 4
digits) of the disk unit here ______________ before you install it.
Attention: Disk units are fragile. Handle with care.
unit. If the handle is not all the way out, the disk unit will not slide into
the system unit or the expansion unit. Do not hold the disk unit by the
handle. View video.