I've used some distributed file systems before, but now I want to build a proof of concept. Does anyone have any experience or thoughts on things like hadoops HDFS, gluster and/or lustre? I need a cluster that will be fault tolerant, being able to mange itself and its data so it can handle an individual node going away. Again, I've tried some, and read plenty (of outdated) docs online, so I'm looking for anyone who has used, or even better, is using, any of these options -or- others for running distributed file systems. I'm looking to have a cluster as a backend store that a local appserver can pull images from to serve up. Thanks P