MAP 5060: Power 2145-8A4

MAP 5060: Power 2145-8A4 helps you to solve power problems that have occurred on the SAN Volume Controller 2145-8A4 node. If you are using any other SAN Volume Controller model, see the Power MAP for that SAN Volume Controller model.

If you are not familiar with these maintenance analysis procedures (MAPs), first read Using the maintenance analysis procedures.

You might have been sent here for one of the following reasons:

A problem occurred during the installation of a 2145-8A4 node.
The power switch failed to turn the node on.
The power switch failed to turn the node off.
Another MAP sent you here.

Perform the following steps:

Are you here because the node is not turned on?

NO

Go to step 9.

YES

Go to step 2.
(from step 1)
Is the power LED on the operator-information panel continuously illuminated? Figure 1 shows the location of the power LED on the operator-information panel.

Figure 1. Power LED on the SAN Volume Controller 2145-8A4 operator-information panel

NO

Go to step 3.

YES

The node turned on correctly. Reassess the symptoms and return to MAP 5000: Start or go to MAP 5700: Repair verification to verify the correct operation.
(from step 2)
Is the power LED on the operator-information panel flashing?

NO

Go to step 5.

YES

The node is in standby mode. Input power is present. Go to step 4.
(from step 3)
Press the power-on button on the operator-information panel of the node.

Is the Power LED on the operator-information panel illuminated a solid green?
NO
Verify that the operator-information panel cable is correctly seated at both ends. If the node still fails to turn on, replace parts in the following sequence:
1. Operator-information panel
2. Operator-information panel cable
3. System board
Verify the repair by continuing with MAP 5700: Repair verification.
YES

The power-on indicator on the operator-information panel shows that the node has successfully turned on. Continue with MAP 5700: Repair verification to verify the correct operation.
(from step 3)
Locate the 2145 UPS-1U that is connected to this node.

Does the 2145 UPS-1U that is powering this node have its power on and is its load segment 2 indicator a solid green?

NO

Go to MAP 5150: 2145 UPS-1U.

YES

Verify that the input-power cable is securely connected at both ends and shows no sign of damage; otherwise, if the cable is faulty or damaged, replace it. If the node still fails to turn on, go to step 6. If the node turns on, continue with MAP 5700: Repair verification.
(from step 5)
Remove the node from the rack and remove the top cover. Reconnect the power cable, which is still connected to the 2145 UPS-1U, to the node. Is the standby power LED that is on the system board illuminated? Figure 2 shows where the diagnostics LEDs are located on the system board.
NO

Go to step 7.

YES
Replace the SAN Volume Controller 2145-8A4 parts in the following sequence:
1. Operator-information panel
2. Operator-information panel cable
Figure 2. SAN Volume Controller 2145-8A4 system board LEDs
- Fan 1 error LED
- Fan 2 error LED
- Fan 3 error LED
- DIMM 1 error LED
- DIMM 2 error LED
- DIMM 3 error LED
- DIMM 4 error LED
- PCI Express slot 2 error LED
- PCI Express slot 1 error LED
- Fan 4 error LED
- Fan 5 error LED
- Voltage regulator error LED
- Standby power LED
- Power good LED
- Baseboard management controller heartbeat LED
- SAS/SATA controller error LED
(from step 6)
Is the voltage regulator LED that is on the system board illuminated?
NO

Go to step 8.

YES

Replace the system board.
(from step 7)
Replace the SAN Volume Controller 2145-8A4 parts in the following sequence:
1. Input-power cable (or the 2145 UPS-1U to SAN Volume Controller node power cable)
2. Power supply
Are you now able to turn on the node?
NO

Contact your IBM® service representative for assistance.

YES

The power-on indicator on the front panel shows that the node has successfully turned on. Continue with MAP 5700: Repair verification to verify the correct operation.
(from step 1)
The node does not turn off when the power button is pressed. When the node is fully booted, power-off is performed under the control of the SAN Volume Controller software. The power-off operation can take up to five minutes to complete.

Is Powering Off displayed on the front panel?

NO

Go to step 10.

YES

Wait for the node to turn off. If the node fails to turn off after 5 minutes, go to step 10.
(from step 9)
Attention: Turning off the node by any means other than using the SAN Volume Controller Console might cause a loss of data in the node cache. If you are performing concurrent maintenance, this node must be deleted from the cluster before you proceed. Ask the customer to delete the node from the cluster now. If they are unable to delete the node, contact your IBM service representative for assistance before you proceed.
The node cannot be turned off either because of a software fault or a hardware failure. Press and hold the power button. The node should turn off within five seconds.
Did the node turn off?

NO

Turn off the 2145 UPS-1U that is connected to this node.
Attention: Be sure that you are turning off the correct 2145 UPS-1U. If necessary, trace the cables back to the 2145 UPS-1U assembly. Turning off the wrong 2145 UPS-1U might cause customer data loss.

Go to step 11.

YES

Go to step 11.
(from step 8)
If necessary, turn on the 2145 UPS-1U that is connected to this node and then press the power button to turn on the node.

Did the node turn on and boot correctly?
NO

Go to MAP 5000: Start to resolve the problem.

YES

Go to step 12.
(from step 11)
The node has probably suffered a software failure. Dump data might have been captured that will help resolve the problem. Contact your IBM service representative for assistance.