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- From: olson@anchor.esd.sgi.com (Dave Olson)
- Newsgroups: comp.sys.sgi.admin
- Subject: Re: New Sysadmin - hardware questions
- Message-ID: <up4dons@zuni.esd.sgi.com>
- Date: 12 Jan 93 05:53:53 GMT
- References: <1993Jan11.184619.18179@ulysses.att.com>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Lines: 49
-
- In <1993Jan11.184619.18179@ulysses.att.com> jdt@ulysses.att.com (Jonathan D. Trudel[ftd]) writes:
- | 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?
-
- You can use the full device name. You must have added the disk with
- the Add_disk script. Also see the disk tool in system manager (top
- item on the toolchest at top left).
-
- | 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?
-
- Yes. Of course, it is helpful if /etc/fstab matches ;)
-
- | 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?
-
- You have to install the server version of libgl_s; it *should* have
- been installed automatically as part of eoe1.sw.unix. Perhaps somebody
- removed it because they thought they didn't need it? Other than gettig
- that installed, setting the DISPLAY environment variable to point to
- some other SGI system should do the job.
-
- | 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.
-
- You'll also have to edit /usr/sysgen/master.d/tpsc (assuming this is on
- integral SCSI; jagtape otherwise), in a manner similar to st_tape.c on
- Sun. Several people corresponded with me on this recently and got it
- to work, perhaps one of them will post their actual entry. You may
- have to post with 8500C in the subject for them to notice.
-
- Also see /dev/MAKEDEV for existing minor number use.
- --
- Let no one tell me that silence gives consent, | Dave Olson
- because whoever is silent dissents. | Silicon Graphics, Inc.
- Maria Isabel Barreno | olson@sgi.com
-