>I am just trying to consider my options for storing a large mass of >data (tens of terrabytes of files) and one idea is to build a >clustered FS of some kind. Has anybody had any experience with that? >Any recommendations? You haven't actually stated whether you want the backing devices distributed or have the file system support more than one mount? You likely don't need a cluster aware fs, if you need to access the data in more than one place any of several file sharing methodologies will work. I suspect as your storage need is large, you need to distribute it across more than one block device probably on several servers? DRBD is of no use here. Clarify what you're after... jlc