Load Balancing for Microsoft Orchestrator application

Hi Folks,
We are trying to configure Load Balancing for Orchestrator Server.
We have closely 200 users running a workflow.. so in that case, we need to configure the Runbook Server as a application load balancing cluster, so please do share me the configuration guides..
Regards,
Venu
Best regards, Venu.

I'm in the middle of doing this right now. There is a doc on metalink (233428.1) that details the process. I would highly recommend trying this in dev/test env first. Even though the instructions are very straight forward and not very complicated, I'm still having configuration issues.
Clint

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    Event ID:      32108
    Task Category: (1006)
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    ======
    Log Name:      Lync Server
    Source:        LS User Services
    Date:          1/14/2014 3:35:01 PM
    Event ID:      32109
    Task Category: (1006)
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     ====================
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    Source:        LS Master Replicator Agent Service
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    Level:         Error
    Keywords:      Classic
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    Event ID:      45005
    Task Category: (1037)
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    Keywords:      Classic
    User:          N/A
    Computer:      lyncfe01n.doitnow.com
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    Computer:      lyncfe01n.doitnow.com
    Description:
    The connection to domain controller DC01.doitnow.com appears to have been terminated.  The domain controller could have gone down. User Replicator will attempt to reconnect to an available domain controller for this domain.
    =====
    Log Name:      Lync Server
    Source:        LS File Transfer Agent Service
    Date:          1/14/2014 3:58:43 PM
    Event ID:      1035
    Task Category: (1121)
    Level:         Error
    Keywords:      Classic
    User:          N/A
    Computer:      lyncfe01n.doitnow.com
    Description:
    Failed to register with back-end database. Microsoft Lync Server 2010, File Transfer Agent will continuously attempt to reconnect to the back-end.  While this condition persists, no replication will be done.
    The Connection string: Data Source         = sql.doitnow.com\rtc;
                    Database            = xds;
                    Max Pool Size       = 5;
                    Connection Timeout  = 60;
                    Connection Reset    = false;
                    Enlist              = false;
                    Integrated Security = true;
                    Pooling             = true;
    Exception: [-1] Could not connect to SQL server : [Exception=System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that
    the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
       at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
       at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
       at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)
       at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
       at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
       at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
       at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
       at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
       at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
       at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
       at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
       at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
       at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
       at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
       at System.Data.SqlClient.SqlConnection.Open()
       at Microsoft.Rtc.Common.Data.DBCore.PerformSprocContextExecution(SprocContext sprocContext)]
    Cause: Possible issues with back-end database.
    Resolution:
    Ensure the back-end is functioning correctly.
    =================

    Thanks Andrew.
    may be i missed to create SRV records for the second FE server - Let me check this point and come back -- is it mandatory to create the SRV records for second FE server?
     Are the clients using "Automatic Configuration"? Yes. 
    so web service need a hardware load balancer right?

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