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Replacement of EMM modules on an in service MD1220
We have two MD1220 storage shelves, one in service and one that is not. OMSA is showing EMM 0 fault but the LED on the module is steady green. If necessary can I salvage an EMM module form an out of service MD1220 and replace the in service module to see if the OMSA fault clears? What are the implications to the data arrays on the in service storage shelf?
I am planning a replacement storage unit for this system but it is going to take some time to acquire it. The data at risk is difficult to move since it is part of a VMS system. I am hoping to take advantage of some parts I have on hand to tide me over.
any guidance is greatly appreciated!
David
DELL-Charles R
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June 11th, 2024 20:23
Hello,
Are the EMM you currently have on the same firmware?
Have you verified that cables are latched in well for EMM0 at both ends?
If you have a spare then you should be able to swap it out.
You should confirm they have the same firmware level.
You may plan a maintenance window to down hosts and storage to be safe.
You could check first if it is just a reporting error with OMSA
Shut down OMSA
Stop the services in order listed
Then start services in order listed
DSM services:
DSM SA Connection Service
DSM SA Shared Services
DSM SA Data Manager
DSM SA Event Manager
Check results in OMSA