2010/2/15 Toke Eskildsen <t...@statsbiblioteket.dk>: > From: Tim Terlegård [tim.terleg...@gmail.com] >> If the index size is more than you can have in RAM, do you recommend >> to split the index to several servers so it can all be in RAM? >> >> I do expect phrase queries. Total index size is 107 GB. *prx files are >> total 65GB and *frq files 38GB. It's probably worth buying more RAM. > > Have you considered throwing one or more SSD's at the problem? Intel > X25-M G2 (or X25-E if you're dictated by your organization to buy > enterprise level) is my personal favorite right now. They are, compared > to RAM or even high-end spinning harddrives, often quite cost-effective.
I actually tried SSD yesterday. Queries which need to go to disk are much faster now. I did expect that warmup for sort fields would be much quicker as well, but that seems to be cpu bound. It still takes a minute to cache the six sort fields of the 40 million document index. But I'm happy the queries are faster with SSD. Are there any differences among SSD disks. Why is Intel X25-M your favourite? /Tim
