Variables, Substitution, and Assignment › Vartable Facility › Mirrored Vartables

Mirrored Vartables

Note: Mirrored vartables are only available if your region includes Automation Services products.

A mirrored vartable can be used to control an AOM screening table. For example, message IDs can be stored in a mirrored vartable, and message suppression and routing can be controlled dynamically by adding or deleting entries in the table. Using the LOOKUP screening statement, messages that are matched by message ID can have various attributes assigned or altered.

The ability to dynamically add entries to a mirrored vartable, by screening table code, allows statistics on such things as message ID to be easily accumulated.

If AOM is not started when a vartable with a scope of AOM is allocated, no mirroring takes place. When AOM START is issued, all existing SCOPE=AOM vartables are mirrored. When AOM STOP is issued, all mirrored vartable copies are deleted; the standard vartable remains. If a mirrored vartable is allocated while AOM is started, it is mirrored immediately.