Hi keahey,
You can follow these steps:
- Navigate to the aggregates page
- Select the "Aggregates,Deleted" report from the drop down menu present on the top right side.
The deleted aggregate should be visible.
- Select the aggregate by check marking the corresponding box and clicking on "Undelete"
This should add the aggregate back to your OM.
Point to Note: Objects (Storage systems, Aggegates, Volumes etc..) that are deletd manually from Operations Manager do not get added back automatically on the next discovery. These can be Undeleted by procedures similar to the one stated above.
Thanks,
Dhruv