Installation guide

Monitoring database and disk usage 22-43
Chapter 22: Monitoring and Maintenance
Wave Global Administrator Guide
Monitoring database and disk usage
The Wave database stores your system configuration settings (information about trunks, users,
auto attendants, and so forth), the Call Log, and an index to voice prompts, greetings, voice
titles, and voice message files. The actual voice files themselves are stored separately on disk.
Tasks associated with monitoring database and disk space include:
• Allocating database space
• Allocating disk space
See the Wave Server Installation Guide for information on the limits of MSDE and SQL Server
databases.
Database server memory usage
The Wave database is configured by default to use up to 50% of the available system memory,
which Wave automatically allocates to itself at system startup. Memory size is set when the
Wave Server starts. If you add more memory to the system (for example, to support more
extensions or trunks), memory size is reset the next time you start the Wave Server.
Memory usage by the database server is dynamic. Some types of database activity (for example,
nightly Call Log archiving on busy systems) may require more memory. If more memory is
required to support database operations, the database server requests it from Windows.
However, this memory is not released automatically when it is no longer needed. For this
reason, memory usage by the Wave database typically ramps up to the maximum available, and
then levels off. This is normal behavior—not a memory leak—and is not an indication that
memory used by the database server is about to reach the maximum or that the system may fail.
If Windows needs the memory back at a later time for its own use or for another application, it
will ask the database server to release some. Also, when you stop the Wave Server, all the
memory allocated for use by the database server is released.
Release 2.0
September 2010