I recently migrated a clustered index. We wanted to rename the index. I created the new index as your normally would via the CM. Put the cluster in maintenance mode. Stop any ingest into the "old" index and merely copied all the contents of the "old" index into the "new" index on all 6 of our indexers. Took the cluster out of maintenance mode and did a rolling restart. Everything worked fine except when I count the events in both indexes for ALL TIME, the old index is ~40 million events and the new index is ~111 million events. We have a SF & RF of 3. My thoughts are that its something with the RF of 3 however the math does not really workout to be 3x.
