Hi John,
We realize that this a very large disk requirement but we have it in place because of the wide range of functionality of the Replicator Agent. Our customers have the ability to create very detailed logs and combining that with the Agent’s ability to process millions of records quickly and any other options the customer enables, it can add up. So we ask that you have 100 Gb disk space because failure to create these giant logs could cause the agent to fail, which could be very hard to recover from.
In short we have that requirement just in case, and to prevent customers from losing records.
Thanks!
Joseph