• Unless the recovery process is running; however, an installation runs without an archiver process until the log file fills up. User programs are suspended until the archiver is started.

• When the recovery system is backing out aborted transactions from a system failure. Recovery Process Monitoring can help you determined whether Ingres is in a recovery state.

• Due to improper memory resources, inability to read the transaction log file, or inability to write journal files.

• You receive an error indicating that the Archiver process failed to start.

• The VMS command show system does not list the Archiver process.