IBM SAN384B, Installation, Service And User Manual

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v If the SAN384B is going to continue operating during the replacement, check
the power LEDs to verify that the remaining power supply is functioning.
The SAN384B requires a minimum of one power supply at all times to
function.
2. Turn off the power switch on the power supply you are replacing.
3. Disconnect the power cord.
4. Loosen the thumbscrew, using a Phillips screwdriver if necessary.
5. Grasp the handle and pull, sliding the power supply from the chassis (see
Figure 38). Support the power supply from beneath as you remove it.
6. If you are not immediately replacing the power supply, insert and attach a
power supply filler panel into the slot.
Note: Two power supplies are required to provide redundancy, protecting
against potential data loss.
Installing a power supply
To install a power supply, do the following:
1. Remove any filler panels that were temporarily installed.
2.
Insert the power supply into the slot. Verify that the power supply is seated by
gently pulling on the handle. The power supply should resist movement as you
pull.
3. Tighten the thumbscrew.
4.
Connect the power cord.
5. Move the power supply switch to the on position.
6. Verify that the power LED on the power supply displays a steady green light.
384b022
Figure 38. Removing and installing a power supply
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SAN384B Installation, Service, and User Guide