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Article #134

New Sysadmin - hardware questions

#134
From: Jonathan D. Trudel[ftd]
Date: Mon, 11 Jan 1993 18:46
34 lines
1850 bytes
Hello,
 
I'm quite new to using SGIs and I had a couple of questions.

First of all, is it necessary to use hardware links in /dev for newly
attached disk drives?  Coming from a Sun environment, I'm more used to 
mounting the actual devices as file systems instead of things like
/dev/disk1.  I like to see what hardware is being used where, and since 
you're really using the same major and minor device numbers of, say
/dev/dsk/jag0d1s7, what's the harm?

Secondly, I've been told that the system really doesn't care what SCSI
device numbers you use on the SCSI chaains, so long as the id isn't 0.
True?  Does the system just recognize what a device is by probing the
bus or something?

Can I get a machine to run its administrative tools with the 
display on another (part of the faq, perhaps?)?  On my SGI server,
it complains that it "can't access a needed shared library".
How do I set it up right?

Lastly, how do I create tape drives on a SCSI bus?  I would like to
set up an exabyte 8500C on the system, but how do I go about using the 
compressed and non-compressed modes?  I know you use different minor
numbers on the device to get the different modes, but how do I space
the numbers to get it right?  On a Sun, for example, the base number is
the tape drive with rewind, and the base number+4 is no rewind, and so on.
Any suggestions would be appreciated.


Thanks for any help you can give.

						Jon
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From: jdt@ulysses.att.com (Jonathan D. Trudel[ftd])
Subject: New Sysadmin - hardware questions
Message-ID: <1993Jan11.184619.18179@ulysses.att.com>
Date: Mon, 11 Jan 1993 18:46:19 GMT
Reply-To: jdt@ulysses.att.com
Organization: AT&T Bell Labs, Murray Hill, NJ
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