Back-UPS garbage? (was: Quick survey -- UPSs on slave nodes?)

Brian D. Ropers-Huilman bropers at
Tue Feb 11 10:40:28 PST 2003

I have an APC 500 UPS at home, a biege-box w/ Pentium III @ 733 MHz, 1 GB RAM, 
four internal IDE drives, DVD, and CD-RW. I also have my 21" ViewSonic monitor 
plugged into the unit. I get a full 20 minutes of backup time. I actually have 
the monitoring software wait a full 10 minutes before it starts shutdown 
procedures. I've never had a problem.

On Tue, 11 Feb 2003 Drew Raines <drew-list-beowulf at> wrote:
> Mark Hahn <hahn at> writes:
> > their low-end UPSs are low-end in performance and robustness, but
> > can certainly be expected to keep real machines up for their
> > rated minutes.  obviously a 450VA is not going to keep a power
> > workstation up for long, but you've gotten what you paid for.
> No, I didn't get what I paid for.  I paid for it to keep a
> low-budget PC up for a minute during an outage so I could either
> reboot the machine, or let the power come back to life.
> The box gave me the impression that said unit would do this for 17
> minutes.  I got 2-3 seconds.

Brian D. Ropers-Huilman                        (225) 578-0461 (V)
Systems Administrator                 AIX      (225) 578-6400 (F)
Office of Computing Services       GNU Linux   brian at
High Performance Computing            .*.
Fred Frey Building, Rm. 201, E-1Q     /V\                          \o/
Louisiana State University           (/ \)           --  __o   /    |
Baton Rouge, LA 70803-1900           (   )          --- `\<,  /    `\\,
                                     ^^-^^              O/ O /     O/ O

More information about the Beowulf mailing list