Messages in this thread | ![/](/images/icornerl.gif) | | Date | Thu, 22 Jul 1999 11:15:29 +0100 (GMT) | From | Riley Williams <> | Subject | Re: FS corruption... some help maybe?? |
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Hi Joe.
> okay.. well then someone suggest me a good UPS with ALL of the > following criteria:
> 1. Must work with both NT and Linux, in the event that I ever > boot to NT again (rare but those damm word files make me do > it) not reading then writing them..
That accounts for about 99% of the models out there...
> 2. Easy to configure under both Linux and NT
Linux: 1. Install UPS driver. 2. Edit /etc/inittab to add relevant lines.
Win9x: 1. Follow instructions from "Add new hardware" dialog.
WinNT: No idea so no comment.
> 3. 10 to 15 minutes reserve power .. my power just flashes > occasionally, but has gone out for several hours
The usual specification is 20 minutes of reserve power, although some more upmarket models specify 30 minutes.
> 4. if power goes out the system must know that power is gone > and shut itself down (apmd? or some dameon)
Most UPS provide an 'on reserve power' signal, and the usual configuration is for the assertion of that signal to cause the computer to prepare for shutdown. Something like the following being run when it gets asserted...
Q> shutdown -h -t 15 +15 'PowerFail: System Shutdown.'
...with the following if the said signal gets de-asserted during that time...
Q> shutdown -c 'PowerBack: Shutdown cancelled.'
...to make sure that the shutdown only completes if the power-out is an extended one.
> 5. Must be SMP friendly (shouldn't make a difference)
It doesn't.
> 6. Around $100..
Not sure about dollars, but they're around UKP 130 - that translates to around US $200 at current exchange rates, but all too often, that translation does not apply.
Best wishes from Riley.
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