Uncertified EMM Module

What Caused the Problem?

The storage array currently contains a expansion enclosure in which one or both of the EMM modules are uncertified.

This can be caused if you:

• Replaced a certified EMM module with an uncertified EMM module.
• Replaced both certified EMM modules with uncertified EMM modules. The expansion enclosure becomes uncertified if both EMM modules are uncertified.
• Replaced an entire certified expansion enclosure with an uncertified expansion enclosure (both EMM modules are uncertified).

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

• Contact your technical support representative to obtain a list of certified EMM modules and expansion enclosures.
• If the expansion enclosure becomes uncertified (all EMM modules in the expansion enclosure are uncertified), all I/O to the expansion enclosure will fail.
• If the expansion enclosure has two EMM modules, and only one is uncertified, you should correct this condition as soon as possible. If the certified EMM module or its communication path fails, the expansion enclosure will be uncertified all I/O to that expansion enclosure will fail.
• The following events will occur until all EMM modules are certified:
  • This storage array will remain in a Needs Attention state.
  • A critical event will be logged every time the RAID controller module enclosure is powered up.
• If the expansion enclosure is uncertified (all EMM modules in the expansion enclosure are uncertified), the physical disks in the expansion enclosure will be automatically spun down (failed) to avoid potential damage to the physical disks. If the physical disks are spun down, the Recovery Guru may also report physical disk, virtual disk, and channel failures. However, do NOT use the associated Recovery Steps for these reported failures. Instead, complete the Recovery Steps below and the other failures should be corrected.
• The fault indicator light on the uncertified EMM module will not be on.

Recovery Steps

1	If the uncertified status resulted because... Then... Only one of two certified EMM modules was replaced with an uncertified EMM module Go to step 2. The only certified EMM module or both certified EMM modules were replaced with uncertified EMM module(s) Go to step 3. An entire uncertified expansion enclosure (all EMM modules are uncertified) replaced a certified expansion enclosure The uncertified expansion enclosure must be removed and replaced with a certified expansion enclosure. Go to step 3. An entire uncertified expansion enclosure (all EMM modules are uncertified) was inserted in addition to the certified expansion enclosures Remove the uncertified expansion enclosure. For future storage expansion, only certified expansion enclosures can be added to existing storage arrays. In addition, only certified expansion enclosures can replace certified expansion enclosures. When finished, go to step 6.
2	Perform the following steps to identify the uncertified EMM module: Caution: Risk of Data Loss. Make sure you correctly identify the uncertified EMM module. Removing the remaining certified EMM module while I/O is in progress can cause data loss. a Select the affected enclosure's Expansion Enclosure Components button in the Physical View of the Array Management Window. b Select the EMM module icon   in the left-hand pane of the Expansion Enclosure Component Information dialog. c From the right-hand pane of the Expansion Enclosure Component Information dialog, find the EMM module listing the following information: EMM card status: Uncertified. d For the uncertified EMM module, note the information given for Location. You will need this information for step f. e Select Blink Enclosure. The indicator lights on the expansion enclosure containing the uncertified EMM module will be blinking. f From the back of the expansion enclosure, locate the uncertified EMM module using the Location information you noted in step d. When finished, go to step 3.
3	If... Then... The cables are connected directly to the EMM module Label each cable to ensure that they are properly reconnected when the EMM module is replaced. Remove the cables. Go to step 4. The cables are connected to an interface transceiver such as a SFP Label each interface transceiver to ensure that they are properly reconnected when the EMM module is replaced. Leave the cables connected and remove the interface transceivers from the EMM module. Go to step 4.
4	Replace all uncertified components with certified components.
5	Using the labels created in step 3, reconnect the cables or transceivers to the replaced module(s). Wait 40 seconds, then go to step 6.
6	If applicable, fix any loss of redundancy problems reported by Recovery Guru before continuing to step 7.
7	Click the Recheck button to rerun the Recovery Guru to ensure the failure has been fixed. If... Then... No failures are reported You are finished with this procedure. An uncertified EMM module is still reported You replaced an uncertified EMM module with another uncertified EMM module. After obtaining a certified EMM module, repeat steps 1 through 7 to replace the uncertified EMM module with the certified EMM module. If you are unsure if an EMM module is certified, contact your technical support representative. If you are certain that the new EMM module is certified, stop all I/O to the storage array, turn the power switches off and on again on the back of the RAID controller module enclosure, and repeat step 7. If you are unable to correct the uncertified status after performing steps 1 through 7, contact your technical support representative.