When you install a
new Logger, you create its central database. Create an HDS database on
a real-time Administration & Data Server. When you create a database, you
specify the size of its data or log files. The data files must be sufficient
for all the data that you expect the database to hold. The size of the central
and HDS databases depend on your call center traffic and your data retention
The local database
(awdb) contains configuration and real-time data, if the Administration &
Data Server role includes a real-time server. Because the real-time data in the
local database (awdb) are constantly overwritten by new data, the database size
remains fairly constant.
Over time, the size
of your enterprise or your call volumes can change significantly. Therefore,
you might need to resize the central and HDS databases to meet new
requirements. You normally do not need to resize the local database (awdb). To resize the local database (awdb), use the ICM
Database Administration (ICMDBA) tool.
The data in the
central database and HDS database grow as they accumulate historical data and
call detail records. The growth is directly related to the following factors:
- Size of the Unified ICM
configuration; for example, how many services, skill groups, routes, and trunk
groups are configured.
- Call rate; that is, how
many calls per day the system software is handling.
- How long historical data is
kept in the database.
The amount of
configuration data directly affects the amount of historical data generated.
The system software generates a new historical record every half hour for each
service, skill group, route, trunk group, and so on, that is configured in the
Unified ICM system.
You size and create
the central and HDS databases after installing the system software. Use the
Database Sizing Estimator applet for estimating the size of these databases,
based on the expected usage.
configuration expands significantly or if you change the retention times for
historical data, you might have to increase the size of the database. This
increase might involve adding more disks to the system.