SMAT secondary

SMAT secondary provides HA capability to the SMAT subsystem. In the event that the SMAT subsystem cannot write to the primary file or database, it creates a secondary file or database. Messages are then written to the secondary file/database.

The SMAT subsystem continues in this manner until the primary is available again. At that point, the secondary data is collapsed into the primary and new messages then continue to be written to the primary. Collapsing from secondary to primary happens every two minutes.

The SMAT subsystem cannot write to the primary under these situations:

  • The IDE has SMAT open when the engine is writing to it.
  • The IDE is reading from SMAT when the engine is writing to it.