wyle@ethz.UUCP (Mitchell Wyle) (05/25/87)
The responses have stopped trickling in. The most helpful was from a
very experienced Electrical Engineer here on campus. He explained the
physics of failure phenomena, hardware management, and preventative
maintenance. Unfortunately for you, I deleted his response 8-( He said
to TURN the MONITORS OFF, but let everything else run, including
printers. Here are the rest of the answers. Thank you all for the
advice. We decided to run screensaver, and turn everything off at
night. -Mitch
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From: Karl Berry <kbb%cs.brown.edu@relay.cs.net>
Subject: Turn off screens?
I heard via six levels of gossip that (a) it's better to leave Macs &
laser printers on, but (b) turn Suns off, but don't count this as
informed information.
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From: <cernvax!mcvax!gatech!hope.uucp>
Subject: Screen saving
What we do on our Suns is have a login (no password) called "lock".
It's login shell is a shell script which runs
/usr/bin/lockscreen_default (also known as the game of "life.") When a
user logs out, he logs in as "lock" and walks away. To use the Sun,
just type ^C or whatever the interrupt character is set to in lock's
login shell.
We have found that running lockscreen_default keeps the screen from
burning in.
Theodore Hope
School of Information & Computer Science, Georgia Tech, Atlanta GA 30332
CSNet: Hope@gatech ARPA: Hope@Gatech.EDU
uucp: ...!{akgua,decvax,hplabs,ihnp4,linus,seismo,ulysses}!gatech!hope
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From: <edelheit%ernie.mitre.org@gateway.mitre.org>
Subject: screen saver or shut it off?
Mitchell - Everything that I have been told by "knowledgeable" hardware
types is that you should use screen-saver and not turn the Sun's off.
Our local Mac guru turns the laserwriters and Mac's off, but I leave
our Imagen (with the Canon Engine) on.
If you have bad power, I suggest the an UPS will help.
Jeff Edelheit (edelheit@mitre-gateway.arpa)
The MITRE Corporation, 7525 Colshire Drive
McLean, VA 22102 (703) 883-7586
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From: David England <cernvax!comp.lancs.ac.uk!de>
Subject: Sun's saving or shutting down
When we had our first Sun 2/120 we used to shut it off at night and
weekends. Unfortunately the switches were no good and broke down after
> 10 switches. So now we leave the processors switched on. We turn the
monitors of the Sun 3 machines off because the "life" game that the
lock program uses concentrates on the centre of the screen and
eventually leaves burnt in black rectangles. The Sun 2.0 lock program
is ok. Similarly we leave Macintoshes and Laserwriters switched on.
There are people here who work at night and weekends. I wouldn't be
happy about switching machines on and off every day.
Dave uucp(Europe): ...!mcvax!ukc!dcl-cs!de
uucp(Atlantic): ...!seismo!comp.lancs.ac.uk!de
arpa: de@comp.lancs.ac.uk
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--
Mitchell F. Wyle |csnet or arpa: wyle%ifi.ethz.chunet@relay.cs.net
Instituet fuer Informatik |uucp: wyle@ethz.uucp ...!cernvax!ethz!wyle
ETH Zentrum / SOT |telephone: 011 41 1 256 5235
8092 Zuerich, Switzerland |"Sic itur ad astra"