This still works with Linux
Open Enterprise Server, the Linux version of the Novell services, also supports the NSS file system and will keep copies of deleted files around, only cleaning them up when the disk fills up, just like VMS does. You can safely undelete multiple versions. So if you go to OES when you migrate to Linux you will keep this functionality. From the users point of view there is no difference to a Netware server or an OES Linux server.