Multiple Mount Points
 

Does any file system under Linux support something like multiple mount points? What I mean by this is, for example, if you are using /dev/hda2 for /usr and run out of space, is there any way to make it so /usr starts using a different partition such as /dev/hda3? So the end of /dev/hda3 tells the filesystem that it continues on /dev/hda3 so it is seen only as a single partition? Thanks for your time...

persumably you want to read about Logical Volume Management, LVM, at tldp.org

Would this not also possibly come under the umbrella of striping RAID (hardware or software)?

I was under the impression that LVM was more a question of dynamically changing the parameters for 'partitions' (if you can call them that), such as their start- and end-blocks, although spanning a mount-point onto another partition/disc at runtime was also a possibility, but not of primary importance?