Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!pitt!vax.cs.pitt.edu!jonathan From: jonathan@cs.pitt.edu (Jonathan Eunice) Newsgroups: comp.arch Subject: Re: Data General NEW AVIION machine Message-ID: Date: 27 Mar 91 19:50:41 GMT References: <1991Mar14.184416.3251@berlioz.nsc.com> <32580003@hpcuhe.cup.hp.com> <1991Mar21.150755.24744@webo.dg.com> Sender: news@pitt.UUCP Organization: University of Pittsburgh Computer Science Lines: 43 A side question: what operating system does this machine run ? DG/UX, based on System V Release 4, with some excellent "commercial" enhancements For example, the kernel is multi-threaded, pre-emptible, and completely symmetric across processors. DG's scheduling is apparently quite good, too. File systems have dynamic resizing, disk spanning, disk mirroring, fast recovery/startup, dual-ported disk, and performance enhancements--competitive with Veritas work, and better than the IBM AIX Journalled File System. For networking: TCP/IP, NFS/ONC 4.0, UUCP are bundled, with the general array of X.25, AFP, Portable NetWare, OSI, and SNA links. For GUI: X11R4 and Motif 1.1. Contributed: GNU Emacs, gdb, TeX, SLIP, Kermit, troff, etc. Shells: Ksh, and csh and sh with tcsh/ksh-like line editing. Security: C2 and B1 support as options, rated-ness unclear. Conformance with: POSIX.1, FIPS 151-1, XPG3 Base Level, MNLS, 88open BCS, and OCS, and SVID 3. Misc: sysadm system administration front-end, good internationalization, too many other little features to mention. Missing: SVr4 calls for RFS, real-time scheduling, XENIX, and OPEN LOOK. BSD quota/setquota (replaced with other facility). I'm impressed. It looks to be botha "good UNIX" and a "good operating system," a combination too often available only by buying multiple products. If you want more info, DG has a pretty good little spec sheet/advert "DG/UX Release 5.4 For AViiON Systems" with an apparent publication number of 012-003568-03. I'm sure they'd be more than happy to send you a copy. jse