Xref: utzoo comp.unix.ultrix:5993 comp.sys.dec:4923 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!zaphod.mps.ohio-state.edu!swrinde!elroy.jpl.nasa.gov!decwrl!pa.dec.com!wsl.dec.com!rwood From: rwood@wsl.dec.com (Richard Wood) Newsgroups: comp.unix.ultrix,comp.sys.dec Subject: Re: SCSI to DECSystem 5400 Message-ID: <1991Jan28.163111@wsl.dec.com> Date: 29 Jan 91 00:31:11 GMT References: Sender: news@pa.dec.com (News) Reply-To: rwood@dec.com Organization: DEC, Palo Alto Worksystems Lines: 28 Ojala@cs.hut.fi (Petri Ojala) writes: |> |> DEC has SCSI adapter KZQSA for Q-bus available for DAT- and CDROM-devices. |> Has anyone tried using SCSI disks on this particular SCSI adapter ? |> (The generic kernel configuration file seems to say that sii0 supports |> disks) The environment is DECSystem 5400 running Ultrix 4.1. |> |> What other alternatives does there exist to get SCSI support for |> DECSystem 5400 ? Third-party suppliers ? How is the device driver |> support ? The best solution (although possibly impracticle due to budget constraints) would be to upgrade to a DECsystem 5500. There are substantial gains: - CPU performance approximately doubles, to 21.5 SPECmarks (from somewhere around 11 or so) - "PrestoServe" synchronous file system accelerator *dramatically* speeds up write access to any synchronous mounted file system, notably including NFS server disks. - A single SCSI channel is bundled in, along with the 5400's DSSI and Q-bus based storage methods. -- --------------------------------------------------------------------- Richard Wood Corporate Worksystems Team Digital Equipment Corp. ========================================================================