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Article View: comp.os.linux.hardware
Article #99

Re: 4GB Drives: Who's better Seagate or Quantum

#99
From: David R.
Date: Thu, 09 Nov 1995 00:27
52 lines
3205 bytes

[Stuff Deleted]

: The problem is finding a program to change the mode-select parameter
: that controls this.  If you have an Adaptec 154x or 174x compatible
: card, Roy Neese's SCSICNTL might work.  I think many Unix OS's have
: built-in ability to send SCSI commands directly.  But the best I've
: found is Matt Thul's utility MSDU, that is if it's a publicly
: available product by now.  (Actually I believe even Adaptec's EZ-SCSI
: now comes with a utility that only toggles write-caching and does
: nothing else)


Know where I might be able to find these utils?  I'd like to see if the
write-caches on my drives are on.  Related to this heat/noise issue...
I got a Quantum GrandPrix a few months ago and have had no trouble with it,
other than it's high-pitched whine, which I don't seem to notice that much
anymore.  I'm using it 24/7 in my Micron tower case.  I don't believe
there is any _direct_ airflow, but there is nothing on top of it, and
directly below it is a 3.5" floppy, which I believe runs fairly cool.  :)
There are three fans placed in various spots on the tower, but as I said,
the drive doesn't get _direct_ airflow.  Should I be worried?  Most of
the time it just idles.  Anyone know where I can mail-order a fan with
one of those internal power connectors?  

Also, I'm getting a DAT drive in a month or so.  Since my investment in
SCSI will be so large at that point (1 CD-Rom, 2 HDs, 1 DAT), I'm thinking
of taking the plunge and getting some of those super-high-quality granite
digital stuff.  I'll most likely get an active terminator to replace the
termination on my SCSI controller because the CD-ROM doesn't have the
ability to disable the termination on it's end.  This is what makes me
worry about the termination, because a device a backwards as the CD-ROM
with no way to disable termination and and upside-down 50 pin connector
probably has cheezy termination.  Here are my questions...  Will a good
terminator on one end make up for the fact that the terminator on the
other end might not be doing its job up to spec?  Should I spend the extra
$$$ and go for the teflon internal ribbon cable?  I've already got what
I consider to be a perfectly fine ribbon cable.  My feeling is that if
I am encountering any hidden SCSI problems (occasional errors, low xfer
rate), they will go away with this new terminator.  But I just don't know...
Any ideas on this?  Thanks!

David Ross
snakey@cs.umd.edu

the time it just idles.  I


: Phil
: pjk@aimnet.com
: pjk@netcom.com
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Path: arc1-ca.pugleaf.net!cville-srv.wam.umd.edu!snakey
From: snakey@wam.umd.edu (David R.)
Newsgroups: comp.os.linux.hardware,comp.periphs.scsi
Subject: Re: 4GB Drives: Who's better Seagate or Quantum
Followup-To: comp.os.linux.hardware,comp.periphs.scsi
Date: 9 Nov 1995 00:27:03 GMT
Organization: University of Maryland College Park
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