EMM Firmware Mismatch

What Caused the Problem?

A expansion enclosure in the storage array contains EMM modules with different firmware versions. The software should resolve this mismatch problem by automatically synchronzing the firmware between the two EMMs. However, there are conditions which may cause the automatic synchronization to not occur (refer to the Recovery Steps below). The Recovery Guru Details area provides specific information you will need as you follow the recovery steps.

Important Note

An EMM module firmware mismatch can affect how the storage array reports existing disk groups and virtual disks (some of them may not display).

Recovery Steps

1 Wait at least 15 minutes before going to step 2. This should be sufficient time for the EMM automatic synchronization process to complete.

IMPORTANT: During this time, make sure that you don't remove an EMM module in the affected expansion enclosure reported in the Details area.
2 Review the following information before clicking the Recheck button. Once you have reviewed the information, click the Recheck button to rerun the Recovery Guru.
If after clicking the Recheck button... Then...
The EMM firmware mismatch no longer appears in the Summary area for the affected expansion enclosure. The firmware on the EMMs in the affected expansion enclosure have been synchronized.

As an additional verification, access the Storage Array Profile and then select the Enclosure information. Scroll down until you find the affected expansion enclosure and ensure that the firmware on the two EMMs is the same.
The EMM firmware mismatch continues to appear in the Summary area for the affected expansion enclosure. The automatic synchronization has probably failed because of one of the conditions given below.
  • the host running the management software does not have the event monitor service started,
  • the proper firmware file was not found in the firmware repository directory on the host running the management software,
  • an EMM failure occurred or an EMM was removed during the synchronization,
  • the synchronization failed for some other reason.
a Check to make sure that the event monitor service is started on the host. Start it if it is currently stopped. Once started, this should detect the current mismatch condition and begin the automatic synchronization.
b Check the host's operating system log for entries related to the EMM firmware automatic synchronization to further pinpoint the problem.
c If the EMM firmware mismatch problem continues to be reported, you can synchronize the two EMMs by manually downloading the appropriate firmware using the EMM firmware download option in the storage management software.