Description of problem:

Performing a Datastore SmartState Analysis on RHEV results in: undefined method `ext_management_system

Version-Release number of selected component (if applicable):

5.5.0.8-beta1.4.20151027164951_4ab7fea

How reproducible:

100%

Steps to Reproduce:
1. Define RHEV provider with credentials
2. Refresh Relationships and Power States
3. Enter Credentials for Hosts
4. Perform Datastore SmartState Analysis

Actual results:

Configure > Tasks > My Other UI Tasks shows: 0 Storage Scans Pending; 0 of 0 Scans Complete
errors in logfile
No Drift History

Expected results:

Storage Scan successful
No errors in logfiles
Drift History

Additional info:

evm.log excerpt:

[----] I, [2015-10-29T14:54:45.821366 #17058:f1f98c]  INFO -- : MIQ(Storage.create_scan_task) Created MiqTask ID: [5508000000000002], Name: [SmartState Analysis for [domain_name]]
[----] I, [2015-10-29T14:54:45.839863 #17058:f1f98c]  INFO -- : <AutomationEngine> MiqAeEvent.build_evm_event >> event=<"request_storage_scan"> inputs=<{"MiqEvent::miq_event"=>5508000000000188, :miq_event_id=>5508000000000188, "EventStream::event_stream"=>5508000000000188, :event_stream_id=>5508000000000188}>
[----] W, [2015-10-29T14:54:45.841401 #17058:f1f98c]  WARN -- : MIQ(Storage.scan_queue) Storage name: [domain_name], id: [5508000000000001]: rejected for scan because <undefined method `ext_management_system' for #<Storage:0x0000001213e590>> - removing from target list