Discrete Lines Diagnostic Failure

What Caused the Problem?

A problem occurred during the Discrete Lines Diagnostics. The Discrete Lines are dedicated control and status lines between the RAID controller modules that reside in the Interconnect-battery module. The Recovery Guru Details area provides specific information you will need as you follow the Recovery Steps.

Caution: Electrostatic discharge can damage sensitive components. Always use proper antistatic protection when handling components. Touch components without using a proper ground may damage the equipment.

Important Notes

This problem can result from a problem with one of the following hardware components:
- RAID Controller Module (A or B)
- Interconnect-battery module
One of the RAID controller modules or the Interconnect-battery module will need to be replaced in this procedure. Contact your technical support representative if you need assistance with replacing components.
If you replace a component and it does not fix the problem, then that component may not be faulty and can possibly be reused. After you have identified which component is faulty, take the appropriate steps to return or discard the faulty component.
Depending on the model of your RAID controller module, the battery may be integrated inside the RAID controller module module, rather than residing in a separate module. If the RAID controller module you are replacing contains a battery, you may have to insert the battery from the old RAID controller module module into the new replacement RAID controller module module. Consult your hardware documentation for details.

Recovery Steps

Place the affected RAID controller module offline.

a	Refer to the Details area to determine which RAID controller module reported the problem.
b	Select the affected RAID controller module in the physical view of the Array Management Window.
c	Select Advanced >> Recovery >> Place RAID Controller Module >> Offline.
d	Complete the instructions in the dialog, then select Yes.

Read all of the following steps before taking any action.

a	Click the Recheck button to rerun the Recovery Guru.
b	Select the "Offline RAID Controller Module" problem that is being reported in the Summary area.
c	Complete the Recovery Steps in the "Offline RAID Controller Module" recovery procedure to replace the affected RAID controller module. When finished, go to step 3.

Rerun the Discrete Lines Diagnostic.

Select the RAID controller module in the physical view of the Array Management Window.

Select the Advanced >> Troubleshooting >> Run Diagnostics >> Discrete Lines menu option.

Select Run.

When the diagnostic is finished, return to the Recovery Guru and click the Recheck button.

If...	Then...
The problem still appears in the Summary area	Go to step 4.
The problem no longer appears in the Summary area	The problem is fixed. Do not continue with the Recovery Steps.

If replacing the RAID controller module that reported the problem did not fix the problem, repeat steps 1 through 3 for the alternate RAID controller module.

If replacing both RAID controller modules did not fix the problem, go to step 5.

Follow the Recovery Steps for a Failed Interconnect-battery module, but do not discard the module, as the problem may be in a different component.

From the Array Management Window, select Help >> Reference Recovery Procedures, and then select Failed Interconnect-Battery Module from the list.

When you are finished, go to step 6.

Rerun the Discrete Lines Diagnostic.

a	Select a RAID controller module in the physical view of the Array Management Window.
b	Select the Advanced >> Troubleshooting >> Run Diagnostics >> Discrete Lines menu option.
c	Select Run.
d	When the diagnostic is finished, go to step 7.

Click the Recheck button to rerun the Recovery Guru. The failure should no longer appear in the Summary area. If the failure appears again, contact your technical support representative.