We give each list its own disk (or in some cases, SFS space). This way backups are not usually a problem since it's a relatively small disk to process, plus the list owner becomes responsible for space management - e.g. if the disk fills up it doesn't affect the rest of LISTSERV. We use SFS space for a few lists, for various reasons. At this site, SFS is backed up with Syback, which locks the filespace at the start of the backup (of that filespace). So, it has happened that a post will come in when that particular filespace is being backed up, and thus locked. This doesn't make LISTSERV very happy and the list gets held, so we have to manually free it in that case, but we're sure of a good backup anyhow. Bill City University of New York