In article <1105 at csuna.UUCP> dlt at csuna.UUCP (Dave Thompson) writes: >We are about to upgrade our 3B5s to 3B15s in about a week or so. Accompanying >the hardware for the upgrade was unix release 2.1/2.1.2. In perusing the >documentation, I find no mention of RFS. RFS is based on STREAMS technology, which did not appear until UNIX System V Release 3.0.