Just to add a few cents worth regarding SSD... We use Vertex SSD drives for storing indexes, and wow, they really scream compared to SATA/SAS/SAN. As we do some heavy commits, it's the commit times where we see the biggest performance boost. In tests, we found that locally attached 15k SAS drives are the next best for performance. SANs can work well, but should be FibreChannel. IP-based SANs are ok, as long they're not heavily taxed by other, non-Solr disk I/O. NAS is far and away the poorest performing - not recommended for real indexes.
HTH, Peter On Mon, Aug 22, 2011 at 3:54 PM, Rich Cariens <richcari...@gmail.com> wrote: > Ahoy ahoy! > > Does anyone have any experiences or stories they can share with the list > about how SSDs impacted search performance for better or worse? > > I found a Lucene SSD performance benchmark > doc<http://wiki.apache.org/lucene-java/SSD_performance?action=AttachFile&do=view&target=combined-disk-ssd.pdf>but > the wiki engine is refusing to let me view the attachment (I get "You > are not allowed to do AttachFile on this page."). > > Thanks in advance! >
