Re: [cobalt-users] Cobalt Raq's and UPS.

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

Bruce Timberlake wrote:

> That's all there is to it - plug the RaQ into the UPS, and connect the
> serial cable from the UPS to the 2nd serial port on the RaQ.  Then
> install the UPS software (it did come with some, right?) on the RaQ.
> Voila.

Straight or reverse serial cable, Bruce?

> The Cobalt UPS only allows a "master" RaQ (connected to
> a UPS) to tell other "slave" RaQs on the network that the master is on
> battery power. You would probably have to write your own shutdown
> "handler" on those "slave" units...

That's not what I recall, historically, Bruce.

I remember that the RaQ4s included APC software.

Not that I'm disagreeing, just wondering where I got that idea from.

So you're saying that I DO need to write a shutdown script for each
machine, or I would otherwise?  You've got me confused.

> Otherwise, you'd have to get some sort of battery charge monitoring
> script to work across the serial connection (would probably vary vendor
> to vendor, thus the lack of inclusion of a set way to do it from us),
> and initiate a "shutdown -h now" if the battery is below your threshold
> charge level...

I'd think you'd want to start a minute or three early and send warning
console messages (the shutdown program does this automatically when you
give it a time for the shutdown).

Jeff
-- 
Jeff Lasman <jblists@xxxxxxxxxxxxx>
Linux and Cobalt/Sun/RaQ Consulting
nobaloney.net
P. O. Box 52672, Riverside, CA  92517
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