Multiplex Configuration

SAP Sybase IQ multiplex configuration requires static and dynamic components.

• Static configuration includes multiplex member nodes and their properties.
• Dynamic configuration includes runtime process and connection status and table version usage.

SAP Sybase IQ stores IQ table metadata in the table's dbspace and the table version (TLV) log, which is a shared entity on the main store. The multiplex synchronizes stored table versions when an unavailable node comes back up.

• Coordinator Node
  Each multiplex configuration has one and only one coordinator node that is capable of read-only and read-write operations and is also responsible for bookkeeping to manage other nodes.
• Secondary Node
  All nodes in a multiplex configuration are secondary nodes except the coordinator.