On Tue, 2014-11-04 at 22:57 +0100, Gili Nachum wrote: > My data center is out of SAN or local disk storage - is it a big no-no to > store Solr core data folder over NAS?
It depends on your NAS speed. Both Walter and David are right: It can perform really bad or quite satisfactory. We briefly experimented with using 400GB of Isilon ( http://www.emc.com/isilon ) SSD cache as backend for a searcher. As far as I remember, speed was surprisingly fine; about 3 times slower than with similar local storage. As we needed 20TB+ of index, it would be too expensive for us to use the enterprise NAS system though (long story). > The NAS mount would be accessed by a single machine. I do care about > performance. I have a vision of a off-the-shelf 4-drive box Gorilla-taped to the side of a server rack :-) Or in other words: If the SAN is only to be used by a single machine, this will be more of a kludge than a solid solution. Is it not possible to upgrade local storage to hold the data? How large an index are we talking about? > If I do go with NAS. Should I expect index corruption and other oddities? Not that I know of. As the NAS is dedicated, you won't compete for performance there. Do check if your network is fast enough though. - Toke Eskildsen, State and University Library, Denmark I highly recommend Gorilla Tape for semi-permanent kludges.
