Xref: utzoo comp.periphs.scsi:2769 comp.sys.ibm.pc.hardware:9250 Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!sjsca4!poffen From: poffen@sj.ate.slb.com (Russ Poffenberger) Newsgroups: comp.periphs.scsi,comp.sys.ibm.pc.hardware Subject: Re: How much faster is a 16 bit SCSI Card than the ST02? Message-ID: <1991May31.212120.1692@sj.ate.slb.com> Date: 31 May 91 21:21:20 GMT References: <396@oiscola.Columbia.NCR.COM> Reply-To: poffen@SunOS (Russ Poffenberger) Organization: Schlumberger Technologies, ATE division, San Jose, Ca. Lines: 37 In article rkushner@sycom.UUCP (Ronald Kushner) writes: >In article <396@oiscola.Columbia.NCR.COM> dmoyer@oiscola.Columbia.NCR.COM (Dan Moyer) writes: >>Hi, >> >>A few questions for the collective network knowledge: >> >>I currently have a 386sx with a Seagate ST-02 and ST296N SCSI disk. >> [stuff deleted] >>3) If I also upgrade with a new disk, 80-160 Mbyte range- any >> opinions, recommendations? I understand that QUANTUM has on >> disk cache. What affects have you seen with a disk with cache >> built in? > >I can't comment on the cache, but Quantum makes a damn good drive, makes the >Seagate look like the pig it is. It doesn't hurt to have it. Plus from >ClubMac you can get a bare 100 meg Qunatun SCSI drive for under $350. Just >gotta lie and tell them you got a "mac cx" or something like that. They >think that an SCSI drive can't work in anything but Mac. > I was able to try both a Quantum ProDrive 105s and a CDC Wren IV on my Adaptec AHA1542B. I was SORELY disappointed with the Quantum. The seeks were slow. Benchmarks for both seek and transfer rate were dismal at best, and worst of all, the numbers were very erratic. At times I would get reasonable rates, at other times the seek times were horrible. I also know that this drive doesn't perform any better on a Sun workstation. About the best transfer rate I could get was 500Kbytes/sec. My Wren IV does 1.3Mb/sec. Even an old Wren IIIHH did better than the Quantum. It could get 800Kb/sec. Russ Poffenberger DOMAIN: poffen@sj.ate.slb.com Schlumberger Technologies UUCP: {uunet,decwrl,amdahl}!sjsca4!poffen 1601 Technology Drive CIS: 72401,276 San Jose, Ca. 95110 (408)437-5254