Trend Micro ScanMail for Microsoft Exchange Getting Started Guide

Trend Micro ScanMail for Microsoft Exchange Getting Started Guide
3-12
Allowing Other Servers to Download Updates from a ScanMail
Server
Click Allow other servers to download updates from this server to set ScanMail
to create a duplicate copy of the update package on the current server. Normally,
ScanMail only downloads components that the user has set it to download or the
increments of the components that it needs. See Incremental updates of the pattern
file on page 1-12. When you set ScanMail to duplicate the update package, it will
download all the components that are available for downloading.
For example: There are two Exchange servers (a and b) and each one has ScanMail
installed. ScanMail is set up to update server "a" daily and download all components.
ScanMail is set to update server "b" every week and download only the spam pattern
component. Both servers receive updates from the Trend Micro ActiveUpdate server
as required. Therefore, the components on these servers are not always identical and
they require different incremental updates when they poll the ActiveUpdate server.
Another, more efficient, way to configure your servers would be to set up server "a"
to duplicate the update package. Then, you could set server "a" as the source for
downloads for server "b", and server "b" could receive incremental updates from
server "a" just as if server "a" was the ActiveUpdate server.
Note: You must duplicate the update package to clusters. That is, this option is enabled
and grayed-out so that you must reproduce the components from one virtual server
across all virtual servers on that node by default.