Failed Battery Pack or Battery System

What Caused the Problem?

A battery pack in the Interconnect-battery module has failed. In rare cases, this problem could also result from a failure in the battery system, which includes charging units and voltage regulators. The Recovery Guru Details area provides specific information you will need as you follow the Recovery Steps.

Caution: Possible loss of data accessibility. Do not remove a component when either (1) the Service action (removal) allowed (SAA) field in the Details area of this recovery procedure is NO (), or (2) the SAA LED on the affected component is OFF (note that some products do not have SAA LEDs). Removing a component while its SAA LED is OFF may result in temporary loss of access to your data. Refer to the following Important Notes and the Recovery Steps for more detail.

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

Important Notes

Service Action Allowed Important Information:
- The Service action (removal) allowed field in the Details area indicates whether or not you can safely remove the component. If the SAA field is NO (), then the affected component must remain in place until you service another component first.
- The Service action LED on Component field in the Details area indicates whether or not a physical SAA LED is present on the hardware component. This field does NOT indicate whether the LED is ON or OFF (that indication is provided by the Service action (removal) allowed field).
- If a component does not have an SAA LED, then it is OK to remove the component when its fault LED is lit and the Service action (removal) allowed field = YES () in the Details area.
- The Service action (removal) allowed field shown in the Details area and the physical SAA LED on the hardware component (if supported) MUST match before you remove the affected component. In rare cases (such as multiple problems), the status of the LED and the SAA field may not match. If there is a mismatch, then you should NOT remove the component until these indications match. The Recovery Steps will help you to make this determination.
The purpose of the battery pack is to preserve cached data in the event of a power failure. If virtual disk write caching is enabled, the caching be automatically suspended until the battery pack is replaced and the batteries are fully charged. Therefore, you should replace the battery pack as soon as possible.
Consult the appropriate hardware manual if you need details on locating and replacing the battery pack.
The status of the battery packs can be viewed at any time in the Components dialog or the Storage Array Profile.

Recovery Steps

Blink the failed battery pack using the information provided in the Recovery Guru Details area.

Consult the appropriate hardware manual if you need details on locating and replacing the battery pack.

Check the Service Action Allowed status for the battery pack in the Details area.

If...

Then...

Service Action Allowed = YES (

)

Check the Service action LED on Component field in the Details area and then answer the following question:

Does the field indicate that this battery pack has a physical SAA LED?

Yes - Check the physical battery pack to ensure the LED is ON.
- If the LED is ON, then go to step 3.
- If the LED is OFF, then click the Recheck button to see if another problem appears in the Summary area.
  - If there is another problem, fix it first and then return to this procedure.
  - If there is no other problem, then stop this procedure and contact your technical support representative.
No - Go to step 3.

Service Action Allowed = NO (

)

Answer the following question:

Are there other problems being reported in the Summary area?

Yes - Fix these problems first and then return to this procedure after clicking the Recheck button.
No - stop this procedure and contact your technical support representative

Remove the battery pack, but do NOT discard it.

You may be able to reuse this battery pack if the failure is in another component.

Insert a new battery pack securely into place.

Click the Recheck button to rerun the Recovery Guru.

If...

Then...

The failure is NOT reported

You have fixed the problem. Do not continue with the Recovery Steps.

Note: Depending on your model of battery pack and its current state, it will normally take a minimum of 15 to 30 minutes and a maximum of 24 to 48 hours to become fully charged. During this time, the battery pack will report a Charging status.

The failure is still reported

The failure may be in the battery system, which includes the charging unit and the voltage regulator.

Go to step 6.

The charging unit for the battery pack is located in the Power Supply/Cooling Fan module. Blink the associated Power Supply/Cooling Fan module using the information provided in the Recovery Guru Details area.

The Service Action Allowed field in the details area will be "No" by default, and the corresponding SAA LED will be OFF. You must ensure that it is OK to remove the Power Supply/Cooling Fan module before removing it.

From the Script Editor in the EMW, or by the Command Line Interface, execute one of the following commands:

If the Details area indicates that the LEFT Power Supply/Cooling Fan module is the associated component:
set enclosure powerFan=left serviceAllowedIndicator=on;
If the Details area indicates that the RIGHT Power Supply/Cooling Fan module is the associated component:
set enclosure powerFan=right serviceAllowedIndicator=on;

Note: The commands above are case-sensitive, and must be entered exactly as shown. For assistance with using the Command Line Interface or the script editor, refer to the Enterprise Management Window Online help.

Click the Recheck button in the Recovery Guru dialog to update the Service Action Allowed field.

If...

Then...

No errors were reported from preparing the module for removal

AND

Service Action Allowed = YES ()

Check the Service action LED on Component field in the Details area and then answer the following question:

Does the field indicate that this RAID controller module has a physical SAA LED?

Yes - Check the physical Power Supply/Cooling Fan module to ensure the LED is ON.
- If the LED is ON, then go to step 7.
- If the LED is OFF, then click the Recheck button to see if another problem appears in the Summary area.
  - If there is another problem, fix it first and then return to this procedure.
  - If there is no other problem, then stop this procedure and contact your technical support representative.
No - Go to step 7.

An error occurred

Service Action Allowed = NO ()

Based on the information given from the error dialog, fix the error, then restart these Recovery Steps. If the error continues, stop this procedure and contact your technical support representative

Remove the Power Supply/Cooling Fan module, but do NOT discard it.

You may be able to reuse this module if the failure is in another component.

Insert a new Power Supply/Cooling Fan module securely into place.

Click the Recheck button to rerun the Recovery Guru.

If...

Then...

The failure is NOT reported

You have fixed the problem. Do not continue with the Recovery Steps.

Note: Since the problem was resolved by replacing the Power Supply/Cooling Fan module, the battery pack you removed in step 2 is still a functional battery pack. Take the appropriate steps to return or discard the faulty Power Supply/Cooling Fan module.

The failure is still reported

The failure may be in the voltage regulator.

Go to step 10.

10 The voltage regulator for the battery pack is located in the RAID controller module. Blink the associated RAID controller module using the information provided in the Recovery Guru Details area.

Place the RAID controller module offline.

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

Select Advanced >> Recovery >> Place RAID Controller Module >> Offline.

Complete the instructions in the dialog, then select Yes.

Check the Service Action Allowed status for the RAID controller module in the Details area.

If...

Then...

Service Action Allowed = YES (

)

Check the Service action LED on Component field in the Details area and then answer the following question:

Does the field indicate that this RAID controller module has a physical SAA LED?

Yes - Check the physical RAID controller module to ensure the LED is ON.
- If the LED is ON, then go to step 12.
- If the LED is OFF, then click the Recheck button to see if another problem appears in the Summary area.
  - If there is another problem, fix it first and then return to this procedure.
  - If there is no other problem, then stop this procedure and contact your technical support representative.
No - Go to step 12.

Service Action Allowed = NO (

)

Answer the following question:

Are there other problems being reported in the Summary area?

Yes - Fix these problems first and then return to this procedure after clicking the Recheck button.
No - stop this procedure and contact your technical support representative

Remove the RAID controller module, but do NOT discard it.

You may be able to reuse this RAID controller module if the failure is in another component.

If...

Then...

You are using In-Band management of the storage array

(refer to the Network Management Type column in the Enterprise Management Window)

Go to step 14.

You are using Out-of-Band management of the storage array

(refer to the Network Management Type column in the Enterprise Management Window)

Before you insert a new RAID controller module module into the storage array, you must update the DHCP/BOOTP server so that it will associate the new RAID controller module's hardware Ethernet (MAC) address with the DNS/network name and IP address previously assigned to the removed RAID controller module.

To update the DHCP/BOOTP server, find the entry associated with the removed RAID controller module and replace its Ethernet (MAC) address with the new RAID controller module's Ethernet (MAC) address. The RAID controller module's Ethernet (MAC) address is located on an Ethernet ID label on the RAID controller module module in the form xx.xx.xx.xx.xx.xx. If you need more details, consult the Storage System Planning Guide.

When you are finished, go to step 14.

Check the replacement part number of the remaining RAID controller module and ensure that the new RAID controller module has the same replacement part number. Select the remaining RAID controller module in the physical view and then select the RAID Controller Module >> Properties menu option to view the replacement part number.

If you do not have a RAID controller module with the appropriate replacement part number, contact your technical support representative.

15 Make sure at least 1 minute has elapsed. Then, insert the new (compatible) RAID controller module module firmly into place.

Place the RAID controller module online.

a	Select the RAID controller module in the physical view of the Array Management Window.
b	Select Advanced >> Recovery >> Place RAID Controller Module >> Online.
c	Complete the instructions in the dialog, then select Yes.

17 Check the status of the RAID controller module in the Array Management Window. The RAID controller module should have an Optimal status.

If you have virtual disks mapped to hosts that have Automatic Virtual Disk Transfer (AVT) disabled, it may be necessary to redistribute the virtual disks to their preferred RAID controller module. Use the following steps to determine the AVT status of the hosts connected to your storage array:

Open the Storage Array Profile by selecting the Storage Array >> View >> Profile menu option from the Array Management Window. Then, select the Mappings tab.

Scroll to the NVSRAM Host Type Internal Definitions section.

If...

Then...

There are hosts mapped to virtual disks on this storage array that have an AVT status of disabled

There are hosts mapped to virtual disks on this storage array that are not running a host-based, multi-path failover driver

It may be necessary to redistribute the virtual disks to their preferred RAID controller module. If the Array Management Window's Advanced >> Recovery >> Redistribute Virtual Disks menu option is available, select the option.

Note: If you have a mix of hosts with AVT enabled and AVT disabled, all virtual disks will be immediately assigned back to their preferred path. However, until the host-based, multi-path failover driver detects the valid preferred path (may take several minutes), the virtual disks mapped to the AVT-enabled hosts may get temporarily returned back to the non-preferred path.

If the menu option is not available (grayed out), the virtual disks are already associated with their preferred RAID controller modules and no action is needed.

Go to step 19.

There are NO hosts mapped to virtual disks on this storage array with an AVT status of disabled

AND

All hosts mapped to virtual disks on this storage array are running a host-based, multi-path failover driver

No action is required.

If virtual disks need to be redistributed to their preferred RAID controller module, the host-based, multi-path failover driver will automatically initiate the transfer.

Note that detection of a restored preferred path by the multi-path failover driver can take several minutes.

Go to step 19.

Click the Recheck button to rerun the Recovery Guru. The failure should no longer appear in the Summary area.

If...

Then...

The failure is NOT reported

You have fixed the problem.

Note: Since the problem was resolved by replacing the RAID controller module, the battery pack and Power Supply/Cooling Fan module you removed in previous steps are still functional components. Take the appropriate steps to return or discard the faulty RAID controller module.

The failure is still reported

The cause of the failure is not due to the battery pack, charging unit, or voltage regulator. Please contact your technical support representative to assist you with correcting this problem.

Do not discard any components that were replaced during this procedure.