Sun Managers:
Recently, I sent the following to the list:
> I support a SPARC20 and was wondering whether or not it should be
> connected to a UPS. If the machine should be wired to a UPS, what
> brand do you use and what software is used for power management?
> Thanks in advance for your response,
I received several replies to my question. Some respondents said to
put all Unix boxes on a UPS and others suggested putting only mission
critical boxes on them. It also depends on whether the box is acting
as a network device (NFS) or if it is a single user machine. Some
people said that they do not put a single user host on a UPS.
When buying a UPS, the important thing to look for is to make sure
that it will be able to handle the load placed on it in the event of
a power outage. One respondent said to "Add 50% to the actual
wattage you want to use, assuming all other things (such as how long
you want battery power to last) are equal." Another respondent said
that there is a review on UPS's in November '95 issue of BYTE
magazine. He also said not to buy directly from manufactures, as you
can get more than 50% off from their price.
Below is a list of recommended UPS's. Each has power management
software available.
APC (American Power Conversion)
http://www.apcc.com
132 Fairgrounds Road
West Kingston, RI 02892
1-800-800-4APC
Best Power Technology inc.
P.O. Box 280
Necedah, Wisconsin 54646
(608)565-7200
1-800-356-5794
Exide
Hewlett-Packard
Powercom America ONH-1000
One person suggested checking the archive for my answer as the
question had been asked before. From the FAQ:
The site "aurora.latech.edu" archives every summary sent to
the list. Questions are not archived. This site provides
access to its archives via the WAIS and gopher protocols.
It does NOT provide any anonymous FTP access. You can access
the archives over the World Wide Web by referencing the URL
"http://aurora.latech.edu/sunman.html".
Two other people wrote that the question I posed had indeed been asked
recently. Each sent me a copy of the recent SUMMARY. The SUMMARY said
that the key thing to look for in a UPS is the battery longevity (3
years approx.) and they should be user replaceable. I apologize for
duplicating information that had already been asked and will try to
avoid doing so in the future.
Thanks to all who responded to my post and to those who respond after
my summary goes out. Thanks again to:
jcr@ipl.bwh.harvard.edu
Mark Anderson manderso@mitre.org
Andrew andrew@mis.mua.go.th
Daniel Blander Daniel.Blander@acsacs.com
David H. Brierley dhb@ssd.ray.com
Christopher chris@Advent.COM
Francois leclerc@austin.asc.slb.com
Marc LeMaire marc.lemaire@CCG.RNCan.gc.ca
Wis Macomson wis@sequent.com
Matt mattias@txc.com
Lyle E. Miller lyle@ocs.com
Tom Mornini tmornini@infomania.com
Normand Ranger rangern@CIRANO.UMontreal.CA
Rick rnf@spitfire.tbird.com
Salvatore Saieva saieva@ppllc.com
Mike (Mehran) Salehi mrs@cadem.mc.xerox.com
Bert Shure bert@solsource.com
Willi Triantafyllou wtrianta@htcomp.de
Mike Varney MLV03@HEALTH.STATE.NY.US
Keith Willenson keith.willenson@health.state.mn.us
Howard Boyd
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:10:53 CDT