Informix Dynamic Server (IDS) 9.4 is a best-of-breed online transaction processing (OLTP) database for enterprise and workgroup computing. IDS 9.4 protect data assets in a highly-dependable database management system. High Availability Data Replication (HDR) provides complete turn-key disaster recovery. Enterprise Replication (ER) provides selective replication of data across multiple geographic locations. IDS runs on most systems that run a UNIX operating system like Solaris, AIX, HP UX.