Removed EMM Module

What Caused the Problem?

An EMM module has either been removed from the expansion enclosure or is present but is being reported as removed because it is not seated correctly. 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. Touching components without using a proper ground may damage the equipment.

Important Notes

• Correct this failure as soon as possible. Although the expansion enclosure is still operational, a level of redundancy has been lost. If the other EMM module or its communication path fails, all I/O to that expansion enclosure will fail.
• Both EMM modules in the same expansion enclosure must have the same firmware version and be of the same hardware type.
• The EMM modules should contain a label to differentiate between the different hardware types. Make sure that the labels on both EMMs match if you need to replace one of the EMM modules.

Recovery Steps

1

Use the location information in the Recovery Guru Details area to identify the affected expansion enclosure and the location of the affected EMM. Check the expansion enclosure to determine if the affected EMM module has actually be removed or is present but may not be seated correctly. If... Then... The affected EMM module is present  Caution: Potential for Data Loss. Make sure you correctly identify the module listed as removed. Removing the remaining optimal module while I/O is in progress can cause data loss. Without removing the cables, remove the EMM module. Check the female side of the module connector for dirty or plugged pin slots. Look inside the enclosure that housed the module and check the male side of the module connector for damaged pins. Clean any dirty or plugged pin slots and repair any damaged pins. Reinsert the EMM module and wait 40 seconds for the storage array to detect and register the EMM module. Go to step 2. The affected EMM module has been removed If available, reinsert the removed EMM module. If the removed EMM module is not available, insert a replacement EMM module using the following notes: Make sure that the replacement EMM module is the same as the EMM that is remaining in the expansion enclosure (hardware type and firmware version). If the affected expansion enclosure uses EMM modules with external switches, verify that they are set to the same values as the switches on the remaining EMM. Wait 40 seconds for the storage array to detect and register the EMM module. Go to step 2.

2

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.