IBM DS4000 EXP810 Installation, User's, And Maintenance Manual page 151

Storage expansion enclosure
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25. Re-insert the power supply and fan units and reconnect the power supply
cords.
26. (For EXP810 storage expansion enclosures with dc power supply and fan units
only) Turn on all attached disconnect devices before proceeding to step 27.
27. Power on the EXP810.
28. Wait at least 3 minutes and then power on the DS4000 storage subsystem.
Verify the status of the configuration using LEDs and the DS Storage Manager
client program.
29. After removing the faulty cage frame with midplane assembly, transpose the
EXP810 serial number, machine type, and model tag from the faulty cage
frame assembly to the Repair Identification (RID) tag on the new cage frame
assembly. The RID tag is important in transferring the serial number, machine
type, and model from the faulty cage frame assembly to the new cage frame
assembly. Ensure that the new RID tag is affixed to the new cage frame
assembly before you dispose of the faulty cage frame with midplane assembly.
This will ensure that the warranty coverage is not interrupted.
Chapter 5. Installing and replacing components
123

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