Yes, in your case the first step is to edit the file in $SPLUNK_HOME/etc/master-apps/_cluster/local/indexes.conf
manually on the cluster master. Then you need to roll out the configuration bundle to the indexer peers either through the web ui or the CLI on the master node as described: http://docs.splunk.com/Documentation/Splunk/6.2.2/Indexer/Updatepeerconfigurations
Double and triple check those settings are correct before pushing the configuration out since as soon as each peer updates it'll start freezing/deleting data that now qualifies with your new settings if they're accidentally too small.
Yes, in your case the first step is to edit the file in $SPLUNK_HOME/etc/master-apps/_cluster/local/indexes.conf
manually on the cluster master. Then you need to roll out the configuration bundle to the indexer peers either through the web ui or the CLI on the master node as described: http://docs.splunk.com/Documentation/Splunk/6.2.2/Indexer/Updatepeerconfigurations
Double and triple check those settings are correct before pushing the configuration out since as soon as each peer updates it'll start freezing/deleting data that now qualifies with your new settings if they're accidentally too small.
I was so far from what Konstantinow asked. I think that is the correct answer.
Thanks again.