Abstract:
An apparatus for selecting a master in a redundancy system, which can rapidly select a single master among a plurality of backups by selecting a master through negotiation among backups when a failure occurs in the master in a redundancy system with one or more backups.
Abstract:
Disclosed herein are an apparatus and method for displaying images. The apparatus includes a first image output unit, a second image output unit, an image signal selection unit, and an image display unit. The first image output unit is set to master operation mode, and outputs an image signal to be displayed. The second image output unit is set to slave operation mode, and, if the first image output unit has failed, is switched to master operation mode and then continuously outputs the image signal or a new image signal. The image signal selection unit compares the IP source address of a received master message with previously stored address information, and then selects the image signal that is received from the first image output unit or the second image output unit that has a matching address. The image display unit displays the selected image signal.
Abstract:
An exemplary embodiment provides an operating method of a software fault-tolerant handling system, and more particularly, to an operating method of a fault-tolerant handling system in which a fault recovery is easy in a fault-tolerant technology of copying with various faults which can occur in a computing device.
Abstract:
Disclosed is an apparatus and method for measuring system availability for system development. The method of measuring availability of a system includes: generating an error in the system and detecting a fault to measure a Mean Time To Repair (MTTR); and measuring the availability of the system by using the measured MTTR.
Abstract:
A method for transiting an operation mode of a routing processor is provided, which allows each routing processor in a packet processing system to be transited among a slave operation mode, a slave stand-by mode, a master stand-by mode, and a master operation mode to allow the packet processing system to normally operate even though a failure occurs in the routing processor that is set in the master operation mode, a new routing processor is added, or the routing processor set in the master operation mode is initialized.