(Experimental)
FileStore uses a series of directories to store data each with a unique key. For instance item 1005 would be stored in $ROOT/1/0/0/X5. Each directory has a maximum of 20 files including sub directories. This intends to solve the problem of too many file stored at one node while additionally avoiding long seek/close times endemic with single file solutions. Filestore does not put out its own separate distributions. You can acquire it by downloading Meldware and getting it from the server/default/deploy/mail.ear/mail.sar/buni-filestore-xxx.jar or by building it from the source (follow these instructions replacing the module name with "filestore"). You can browse the source here.