My AIX discoveries run for hours sometimes. When you group them together like i do i just run the discovery and come back later or at the end of the day and it should complete.
the full message is:
"Probing ALL information about Host hostname from provider at IP xx.xx.xx.x using Access Credentials AIX Access Credential complete
Invoking Topology Service on hostname_of_prosphere_application_server.domain.com
Timed out while waiting for Topology Service to process data
No Response From Topology Service
Task ID :CMP_DiscoveryTask-ECIM-t8SfDU2ob8YqD1x3uWkNFyhtkg76-1368164186236 "
You can use the below mentioned link to check if the Topology Service is running or not:
Also, try to Power Off and then Power On the Prosphere vApp in vCenter and then run the discovery job again.
In case the issue still persists, I would recomend opening a service request with EMC as there may be some other parameters that need to be looked into.
Hope this helps.