inventory audit program
Each disk subsystem is configured using a RAID procedure so that the failure of individual
physical disks within the disk subsystem in question can be rectified. In addition,
the data is mirrored in the volume manager so that the system can withstand the failure
of a disk subsystem. The two inventory audit program disk subsystems are located at a distance from one another
in the primary data centre. They are separated from one another by a fire protection wall.
Like the disk subsystems, the two servers are spatially separated by a fire protection
wall. In normal operation the database runs on one server; in the meantime the second
server is used for other, less important tasks. If the primary server fails, the cluster
software automatically starts the database on the second computer. It also terminates all
other activities on the second computer, thus making all its resources fully available to
the main application.
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