orig: I need to put the following equipment on a UPS:
orig:
orig: Sparc 10/41 (internal 424M disk)
orig: Sun 21" monitor
orig: Sun 1.3G external disk
orig: 2 Seagate 2G external disks
orig:
orig: I'd like to get recommendations for 2 options on UPS capacities:
orig:
orig: option 1) keep this equipment up for a maximum of 3 minutes
orig:
orig: option 2) keep this equipment up for a maximum of 1 hour
I got many useful replies. The bulk of them recommended two vendors:
APC (http://www.apcc.com/homepage.html, 800-800-4APC) and BEST
(800-356-5794).
Several people went above and beyond; thank you very much. Their
informational contributions follow.
Sid
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* Tox Gunn .......tox@remarque.berkeley.edu *
Check your total wattage, multiply by about 1.4 for load factor to convert to
volt-amps, and then pick a model depending upon how much holdup time you
want. Unless your system is lightly loaded, you might want to give a bit more
than 3 minutes for a clean shutdown. Offhand, I'd suggest 5-10.
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From: ddj@gradient.com (Dave Johnson)
Your best bet would be to get a copy of the UPS faq:
ftp://navigator.jpl.nasa.gov/pub/doc/faq/UPS.faq
or
ftp://rtfm.mit.edu/pub/usenet-by-group/comp.misc/Uninterruptable_Power_Source_FAQ
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From: Simon Burr <simes@tcp.co.uk>
>From the APC power protection handbook:
Sparc 10/41 (internal 424M disk) = 400VA
Sun 21" monitor = ~220VA (19" monitor is 190VA)
Sun 1.3G external disk = Minor
2 Seagate 2G external disks = Minor
Assuming the total load of ~700VA....
1) For a maximum of 3 minutes
Use a SmartUPS 600
2) For a maximum of an hour
Use a SmartUPS 2000XL
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This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:10:30 CDT