Your peak volume is the largest concentrated numbers of unique logins to your Instant Messaging system within a given period in a day. The volume can vary from site to site as well as across different classes of users. For example, peak volume among groups might occur during corporate-held core hours which differ between time zones.
Analyzing peak volume involves three basic operations:
Determining when and for how long the peaks occur
Sizing your deployment against peak volume load assumptions
Once patterns are analyzed, choices can be made to help the system handle the load and provide the services that users demand.
Making sure that your Instant Messaging deployment can support the peak volume that you have determined