Hello! Take a look at http://svn.apache.org/repos/asf/lucene/dev/trunk/dev-tools/size-estimator-lucene-solr.xls
It should be handy. -- Regards, Rafał Kuć Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch - ElasticSearch > Is there a tool or method to help me calculate the growth of solr > disk usage based on the known size of data input into it? > Thanks, > -jeff