HP Integrity NonStop J-Series - Manual (Page 27)

AutoSYNC Overview
HP AutoSYNC User’s Guide—522580-017
1-5
System and Map Databases
System and Map Databases
Each system that has AutoSYNC installed has a single system database (SysDB)
either in the subvolume $SYSTEM.ESCSYSDB or in the ESCSYSDB subvolume on
some other disk volume. This database is a central reference point for other
AutoSYNC components.
You should only update SysDB through the AutoSYNC command interpreter, which
ensures consistency between it and the other AutoSYNC components. SysDB is rarely
updated and should be protected against general update access, since it is required for
production operation of AutoSYNC.
AutoSYNC also requires allocation of a map database (MapDB) to store user-specified
configuration information. Only the AutoSYNC command interpreter and the monitor
process access the MapDB.
AutoSYNC in a Network of Systems
For AutoSYNC to synchronize files between systems in a network, the AutoSYNC
software must be installed and licensed on each system and the monitor process must
be executing on each system.
Synchronization can be performed over an Expand link or by using a TCP/IP
connection.