Good day

I'm doing a migration from Exchange 2003 to Zimbra NE 7.
I remember at zimbra training there was mentioned a zm command to disable or modify the batches of emails that would be processed by the Archiving and Discovery system. This was recommended to be done in order to reduce the load on the server and increase the speed of the import when doing large imports.

I can't find that command. (I have googled, but had no luck). Any suggestions?