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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uwm.edu!ux1.cso.uiuc.edu!news.iastate.edu!pv141b.vincent.iastate.edu!sheldon
- From: sheldon@iastate.edu (Steve Sheldon)
- Subject: Re: Question about ISA/IDE disk throughput (pc newbie)
- Message-ID: <sheldon.725057510@pv141b.vincent.iastate.edu>
- Sender: news@news.iastate.edu (USENET News System)
- Organization: Iowa State University, Ames IA
- References: <MUTS.92Dec21193512@PMCS.estec.esa.nl>
- Distribution: comp
- Date: Tue, 22 Dec 1992 20:51:50 GMT
- Lines: 40
-
- In <MUTS.92Dec21193512@PMCS.estec.esa.nl> muts@estec.esa.nl (Peter Mutsaers) writes:
-
- >Sorry if you see this message twice. I posted before but the article
- >didn't seem to show up.
-
- >In a magazine I read for a couple of 386sx PC's that disk access (IDE)
- >is only at 200 kbyte/s. This seems terribly slow to me, especially
- >for an OS like unix. Is this really true? Do 486dx's have much better
- >IO speeds? How can UNIX live with such a low bandwidth. Are local
- >busses much faster (how much)?
-
- That's not right. On my 386sx PC at home I get a transfer rate of
- around 550 Kb/s with a WD Caviar 80 IDE drive.
-
- We have several machines here in our lab running Unix on IDE drives:
-
- 486DX50 w/16 Megs RAM 256K cache
- 340 Meg IDE drive
- SCO Opendesktop
-
- Transfer rates on these machines are in the neighborhood of 1000 Kb/s
- to 1200 Kb/s, depending on the drive. (Western Digital's 340 Meg is
- slightly faster than the Maxtor)
-
- How can *nix survive? Quite easily... These do everything they're called
- upon to do quite well.
-
- But then our machines are single user consoles, where disk activity was
- less an issue than processor speed and graphics speed.
-
- I don't know if I'd recommend an IDE setup for a machine to be setup
- as a server, or one with a lot of users. But then I don't know as if I'd
- recommend anything on an ISA bus for that either.
-
-
- --
- sheldon@iastate.edu Steve Sheldon
- Project Vincent ICSS Resource Unit
- SCO ODT, Arc/Info, Atlas GIS 2142 Agronomy Hall
- Iowa State University
-