IBM 7226 Manual page 273

NO
If the drives do not power up, go to
follow the recommended drive service action as appropriate (refer to the drive descriptive chapters).
YES
Go to Step 11.
Step 8
This step performs a visual and physical check in an attempt to fix the problem.
1. Prepare the 7226 Storage Enclosure for Service. See
of a Storage Device or Other Component
2. Open the 7226 Storage Enclosure for Service. See
procedure.
3. Visually inspect all of the internal components in the enclosure. Look for any signs of wear, damage, contamination, or
excessive heat. Replace any component that appears to be damaged.
4. Physically check each cable connection and ensure all cables are fully seated and secured.
Are their any signs of damage, wear, or loose cables?
NO
Plug the enclosure into an electrical source and press the power switch to determine if the connection inspection fixed
the problem. If the enclosure does not power up normally, go to
normally, reassemble the enclosure, and then return to
YES
Replace the damaged component or reseat the cable, reassemble the enclosure and then return to
Step 9
This step checks the enclosure power as the possible source of the problem.
1. Press the power switch to turn off the power to the 7226 Storage Enclosure.
2. Disconnect the power cables from the Tape Drives, SAS Interface Assemblies, and RDX Docking Stations.
3. Connect the power cable to both the 7226 Storage Enclosure and to the electrical outlet.
4. Press the power switch to turn on the power.
Does the 7226 power up?
NO
Replace the enclosure (see
YES
Reattach the power supply cables to the Tape Drives, SAS Interface Assemblies, and RDX Docking Stations. Then go to
Step 10.
Step 10
This step examines the drives as the possible source of the problem.
1. Press the power switch to turn off the power to the 7226 Storage Enclosure.
2. Disconnect the power connector from the drive in Bay A.
3. Press the power switch to turn on the power.
Does the drive in Bay B power up and complete the Power On Self Test (POST) normally?
NO
262 IBM 7226 Model 1U3 Storage Device Enclosure
Step 8. If the drives power up, but with status LEDs reporting an error condition,
Preparing the 7226 Storage Enclosure for Removal or Installation
for the correct procedure.
Opening the 7226 Storage Enclosure for Service
Step
Replacing an Enclosure), and then return to
Step 10. If the enclosure powers on and appears to run
1.
Step 1.
for the correct
Step 1.