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- From: jch+@cs.cmu.edu (Jonathan Hardwick)
- Newsgroups: comp.sys.sun.hardware,comp.sys.sun.misc
- Subject: Sun3/50 at home : UPS, SPS, or line conditioner recommendations?
- Message-ID: <C1DMvw.2AB.2@cs.cmu.edu>
- Date: 24 Jan 93 21:11:54 GMT
- Article-I.D.: cs.C1DMvw.2AB.2
- Sender: news@cs.cmu.edu (Usenet News System)
- Organization: School of Computer Science, Carnegie Mellon
- Lines: 32
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-
- I've got an aging Sun3/50 at home that I'd like to keep going for the
- next 3 years or so. Currently, it's only protected by a $15 surge
- protector. This obviously isn't going to do anything for brownouts or
- dropouts, and I'd like something better before air conditioner season
- rolls around. My choices in the $50-$150 range seem to be:
- 1. Line conditioners that protect against brownouts and brief
- dropouts (no batteries, just a big transformer and capacitors).
- 2. UPS/SPSs that protect against the above plus extended blackouts
- (up to several minutes), and which might be able to shut the
- system down automatically with a little hacking on my part.
-
- So, four questions:
- 1. What are the power requirements of my Sun and its monochrome
- screen? (I know how much the Quantum drive draws) It came
- without docs, so I'm in the dark here. Under 250W? 450W? 600W?
- 2. How sensitive is the Sun power supply to fluctuations in the
- supply? I can remember an office glitch in which two IBM RT's
- went castors-up whilst a Sun3/60 never even blinked. Are Sun's
- generally good in this respect?
- 3. Is the extra expense of a UPS/SPS worth it? In other words, how
- often *is* there a blackout which a line conditioner can't handle
- but a UPS can?
- 4. Does anyone have (dis)recommendations? Tripplite line
- conditioners score highly in Eric Raymond's 386-workstation FAQ.
- From a quick look through catalogs, there are also Sola UPSs
- out there. Which other manufacturers should I be considering?
- Ability to be interfaced to the system is a plus.
-
- Thanks for any advice -- I'll summarize responses if there is
- sufficient interest.
-
- Jonathan H., jch@cs.cmu.edu
-