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Configuring an Address Allocation Server (AAS)

Address database

The address database contains information about the addresses currently allocated by the AAS. The address server maintains this database in memory and records changes to it in a transaction log, which it stores on disk. At startup, the address server rebuilds the address database from the transaction log. When the transaction log reaches the ``database compression size'' (see ``AAS configuration database'') the address server compresses the transaction log by writing a new file containing the current allocation information.
The address database contains the following information about each allocated address:

At the ``checkpoint interval'', the address server constructs a transaction log which represents the current allocation information and stores this log as a checkpoint file. The address server rebuilds the address database with the most recent checkpoint file if the current transaction log is lost or corrupted. The checkpoint interval along with the number and location of the checkpoint files are configurable parameters. See ``The Address Allocation Manager interface''.
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SCO OpenServer Release 6.0.0 -- 05 June 2007