Problem: On an SAP Sybase IQ multiplex installed on a shared disk cluster, you are unable to perform control tasks like starting and stopping the nodes.
This problem occurs when multiple nodes in a multiplex run from the same installation of SAP Sybase IQ. SAP Control Center monitoring tasks are not affected.
Solution: Use the SAP Sybase IQ installer to install the SCC agent on each machine in the multiplex environment. SAP Control Center needs a locally installed agent to perform control operations.