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- Newsgroups: comp.unix.ultrix
- Path: sparky!uunet!ukma!darwin.sura.net!spool.mu.edu!uwm.edu!ux1.cso.uiuc.edu!news.iastate.edu!john
- From: john@iastate.edu (John Hascall)
- Subject: Re: Recommendations for high disk throughput
- Message-ID: <C1JA9I.50x@news.iastate.edu>
- Sender: news@news.iastate.edu (USENET News System)
- Organization: Iowa State University, Ames, IA
- References: <1993Jan23.002725.7620@nntpd2.cxo.dec.com> <C1BFFz.EEr@news.iastate.edu> <1993Jan27.205507.13234@grc.genroco.com>
- Date: Wed, 27 Jan 1993 22:24:51 GMT
- Lines: 29
-
- joe@grc.genroco.com (Joe Nordman) writes:
- }john@iastate.edu (John Hascall) writes:
- }>alan@nabeth.enet.dec.com (Alan Rollow) writes:
- }>}thomson@zarda.macc.wisc.edu (Don Thomson) writes:
-
- }>}An IPI subsystem will probably help, but it seems a bit overkill...
- }>Perhaps not. A fairly recent Usenix Paper, "Why SCSI is better than IPI
- }>for NFS" (or something like that), held that IPI was really only a win
- }>for large sequential I/Os, for the NFS I/O mix (generally 8KB and all
- }>over the disk [sound familiar?]) SCSI was a win.
-
- }Actually on Ultrix systems this is not true. IPI will still win. The
- }paper uses a couple of arguments which are either outdated, or don't
- }apply to these systems:
-
- [...reasons elided...]
-
- }Joe Nordman, V.P. of R&D joe@genroco.com
- }GENROCO, Inc.
-
- Not that I doubt any of what was said, but it only seems fair
- that people know that GENROCO makes IPI controllers for DECs...
-
- John
- --
- John Hascall ``An ill-chosen word is the fool's messenger.''
- Systems Software Engineer
- Project Vincent
- Iowa State University Computation Center + Ames, IA 50011 + 515/294-9551
-