Had to restart information store service. Caused by throttling?? Event ID 1010 from ManagedAvailability, any where else to look for error logs?

Recovery action failed. (Action=DatabaseFailover, Resource=00cb58bd-0115-4478-b4aa-fe60dce2757a, Requester=DatabasePercentRPCRequestsDatabaseFailover, Error=Microsoft.Exchange.Cluster.Replay.AmDbMoveOperationNotSupportedStandaloneException: An Active Manager operation failed. Error: The database action failed. Error: This operation is not supported on standalone mailbox servers.

   at Microsoft.Exchange.Cluster.ActiveManagerServer.AmDbOperation.Wait(TimeSpan timeout)

   at Microsoft.Exchange.Cluster.ActiveManagerServer.ActiveManagerCore.MoveDatabase(Guid mdbGuid, MountFlags mountFlags, UnmountFlags dismountFlags, DatabaseMountDialOverride mountDialOverride, AmServerName fromServer, AmServerName targetServer, Boolean tryOtherHealthyServers, AmBcsSkipFlags skipValidationChecks, AmDbActionCode actionCode, String moveComment, AmDatabaseMoveResult& databaseMoveResult)

   at Microsoft.Exchange.Cluster.ActiveManagerServer.AmRpcServer.<>c__DisplayClassc.<MoveDatabaseEx>b__b()

   at Microsoft.Exchange.Data.Storage.Cluster.HaRpcExceptionWrapperBase`2.RunRpcServerOperation(String databaseName, RpcServerOperation rpcOperation)

   --- End of stack trace on server (XMNWDEX001.Xamin.com) ---

   at Microsoft.Exchange.Data.Storage.Cluster.HaRpcExceptionWrapperBase`2.ClientRethrowIfFailed(String databaseName, String serverName, RpcErrorExceptionInfo errorInfo)

   at Microsoft.Exchange.Data.Storage.ActiveManager.AmRpcClientHelper.RunDatabaseRpcWithReferral(AmRpcOperationHint rpcOperationHint, IADDatabase database, String targetServer, InternalRpcOperation rpcOperation)

   at Microsoft.Exchange.Data.Storage.ActiveManager.AmRpcClientHelper.MoveDatabaseEx(IADDatabase database, Int32 flags, Int32 dismountFlags, Int32 mountDialOverride, String fromServer, String targetServer, Boolean tryOtherHealthyServers, Int32 skipValidationChecks, AmDbActionCode actionCode, String moveComment, String& lastServerContacted, AmDatabaseMoveResult& moveResult)

   at Microsoft.Exchange.HA.ManagedAvailability.ManagedAvailabilityHelper.PerformDatabaseFailover(String componentName, String comment, Database database)

   at Microsoft.Exchange.Monitoring.ActiveMonitoring.Responders.DatabaseFailoverResponder.InitiateDatabaseFailover(String databaseGuidString)

   at Microsoft.Exchange.Monitoring.ActiveMonitoring.Common.ThrottledRecoveryAction.Execute(Boolean throwOnException, TimeSpan timeout, Action`1 action)

   at Microsoft.Office.Datacenter.ActiveMonitoring.ResponderWorkItem.InvokeResponder(CancellationToken cancellationToken)

   at Microsoft.Office.Datacenter.ActiveMonitoring.ResponderWorkItem.CheckCorrelationAndInvokeResponder(MonitorResult lastMonitorResult, CancellationToken cancellationToken)

   at Microsoft.Office.Datacenter.ActiveMonitoring.ResponderWorkItem.<>c__DisplayClassb.<>c__DisplayClassf.<DoManagedAvailabilityWork>b__9(ResponderResult lastResponderResult)