Instruction manual

Exchanging Disk Drive Modules
Sometimes, you can exchange a faulty disk drive module without the assistance of a
service representative. You can do this only if:
v You are authorized by your organization.
v You have the correct disk drive module. Refer to Figure 25. This disk drive module
has, at the front, a handle 1 that can be pulled upward to open. The disk drive
module should also be the correct size. The size of a disk drive module is shown on
a label 2 at the front of the disk drive module. The label is shown in more detail in
Figure 14 on page 21.
Attention:
v Disk drive modules are fragile. Handle them with care. Keep them well away from
strong magnetic fields.
v Any slot that has no disk drive module installed must contain a dummy disk drive
module. The dummy module ensures that the correct airflow is maintained around
the disk drive modules in the other slots. If a slot remains empty, overheating might
occur.
You do not need to remove power from the 2104 when exchanging a disk drive module.
After you have exchanged a disk drive module in a 2104, you must restore it into your
system by using the system programs.
Figure 25. Disk Drive Module Handle and Capacity
36 2104 Models DU3 and TU3 Operator’s Guide