IBM 7133 D40, Service Manual

Page: 174 / 306

Installing a Module
Attention:
v
Disk drive modules are fragile. Handle them with care, and 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 provides continuity of the SSA string, and ensures that
the correct airflow is maintained around the disk drive modules in the other slots.
Notes:
1. Unless you have a particular reason to do so, do not switch off the using system or
the 7133 when installing disk drive modules or dummy disk drive modules.
2. The diagrams in these instructions show a 7133 Model D40. The procedure for a
7133 Model T40 is the same, except that everything is turned through 90 degrees.
Step 1. If not already done:
v
Open the front cover (see “Covers” on page 138) if you are installing a
module into the front of the 7133.
v
Open the back cover (see “Covers” on page 138) if you are installing a
module into the back of a Model T40.
Step 2. If you are installing a disk drive module into a slot that already contains a disk
drive module or a dummy disk drive module, remove that module (see
“Removing a Module” on page 150), then go to step 3 on page 157.
Otherwise, go directly to step 3 on page 157.
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7133 Models D40 and T40 Service Guide