Hi Peter, > Has anyone else tried adding SSDs as a cache to boost the performance of Solr > clusters? Can you share your results?
What do you mean by using SSD *as a cache*? A few years ago, Toke Eskildsen and his colleagues compared Lucene performance with traditional HDDs and SSDs and of course found that things fly with SSDs. But they simply put the index on either HDD or SSD, so I'm not sure what you mean by using SSDs "as a cache". I can see putting hot shards on SSDs and putting less frequently searches shards on regular HDDs, but I'm not sure if that is what you mean. Could you please clarify? Thanks, Otis ---- Performance Monitoring SaaS for Solr - http://sematext.com/spm/solr-performance-monitoring/index.html