All the groups and containers are empty in UMP USM portlet

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

After an abrupt restart of UMP portal, all the devices in groups in the UMP portal are empty.  All groups, including inventory show 0 devices.

Environment

UIM/UMP 8.51
discovery_server:  8.51
discover_agent:  8.51
udm_manager:  8.51
nis_server:  8.51
data_engine:  8.50

Cause

There was an error for the MSSQLSERVER process on the UIM database server around the time the error occurred.  All entries in the CM_COMPUTER_SYSTEM and CM_DEVICE tables were missing.

Resolution

A couple of options can be used to resolve this:

1.  Restore the UIM database from a known good backup copy
2.  Cold start (deactivate, then activate) the discovery_server probe to repopulate the missing device tables.  It would also be necessary to kick off a new discovery on all snmpcollector probes in the UIM domain and cold start all vmware probes to get the remote devices repopulated.