Installation guide

Trend Micro™ InterScan™ Web Security Virtual Appliance 6.5 Installation Guide
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13. Backup the IWSVA configuration to keep a copy of the newly created
configuration. Use the Administration > Config Backup/Restore function to
complete this task.
14. Optional installation steps may include the following:
• Customizing the notification messages
• Registering IWSVA to the Advanced Reporting & Management (ARM) module
• Registering IWSVA to Trend Micro's Control Manager (TMCM) central
management system
Properly Sizing Your Environment
Before installing IWSVA into your network, you must first determine how many IWSVA
servers are required to support your company's user population and Internet activity.
Please refer to the IWSVA Customer Sizing Guide for detailed information on how to
calculate the number of IWSVA units needed for your environment.
Things to consider for properly sizing your environment include:
• Number of total users in your company that will access the Internet
• Number of users accessing the Internet simultaneously
• Average number of concurrent sessions used by each active user
• Growth in user population and Internet use
• The type of server hardware being used
• The amount of bandwidth IWSVA needs to scan
• Redundancy and failover
Best Practice Suggestions
• Always size your environment for growth. Trend Micro doesn't recommend sizing
your deployment based on current maximum peak loads as internet usage will
always grow.
• Architect redundancy into the IWSVA architecture to prevent against single points
of failure and to provide roll over during a device failure.