2013-02-22T15:41:52.547-07:00 [00944 error 'task-6'] [GetMntapiOsInfo] Got an error getting MNTAPI OS information
2013-02-22T15:41:52.547-07:00 [00944 error 'task-6'] [BaseDiskSetComputer::AnalyzeErrorAndThrow] Error occurred when opening disk set, MNTAPI_ERROR = 176 MNTAPI errorType = 0, errorCode = 11
2013-02-22T15:41:52.547-07:00 [00944 warning 'task-6'] [PopulateDetailedOsInfo] Failed to get MNTAPI OS version information
2013-02-22T15:41:52.547-07:00 [00944 warning 'task-6'] [PopulateDetailedOsInfo] Failed to get MNTAPI system volume: 176 (type = 0, code=11)
2013-02-22T15:41:52.547-07:00 [00944 warning 'task-6'] [PopulateVolumeMountPoints] Failed to get mountpoints for volume 000000800000010000000000: 176 (type = 0, code=11)
See if this helps:
http://kb.vmware.com/kb/1037507
Regards
a