Westborough, Massachusetts-based Epoch Systems Inc has announced client-server back-up and restore software for systems ranging from personal computers linked via local area networks, to relational databases, Unix workstations and servers and mainframe storage subsystems. Enterprise Backup will be available on November 30 for Sun Microsystems Inc SunOS servers and all major Unix clients, and it will cost from $2,200 for five nodes up to $50,000 for 500 nodes. Availability of a version to support for Novell Inc NetWare clients will follow on December 31, and cost from $1,500 for five nodes to $40,000 for 500 nodes. Enterprise Backup will also support Sybase 4.X as of December 31 – and System 10 when it ships – followed by Oracle 7.X in March. Database clients are from $2,200 for five nodes up to $50,000 for 500 nodes.