To provide a duplication temporary operation method and a duplication system for a device, allowing sufficient function evaluation in continuous operation in new firmware, and allowing new firmware verification in a duplication configuration.
This duplication system has: the devices 1 connected by a LAN, respectively operating as an act system and a standby system; and a signal control part 2 connected to the devices 1 via a LAN 4. The inside of the device 1 has a boot means 1a starting an OS or a device in time of power-on; and memories 1b-1d as work areas, temporarily using transfer data, and each having a function for managing software or a database. The act-system device 1 and the standby-system device 1 have the software of a new version and an old version. The act system and the standby system perform changeover operation of the old version and the new version.
COPYRIGHT: (C)2008,JPO&INPIT
KATO NAOHIRO
TANITSU KOICHI
| JPH0389654A | 1991-04-15 | |||
| JPH04301946A | 1992-10-26 | |||
| JPH09186686A | 1997-07-15 | |||
| JP2001077919A | 2001-03-23 | |||
| JP2003167752A | 2003-06-13 | |||
| JP2003122574A | 2003-04-25 | |||
| JP2000231491A | 2000-08-22 |
Nobushige Samejima