Federico Sevilla III wrote:

> Yes, this is definitely good enough for a simple deployment. I am curious,
> though. How does the UPS know when the machine has about 1.5 minutes of
> battery power left? Having a UPS that could at least determine how much

Apparently, my UPS computes for it by considering the power drained per unit time. I 
should be quick to say that my
UPS can only send two signals: power failure and low battery. It seems that the 
reliability and functionality of my
UPS is good for 2 computers at most only. It does give 20 minutes backup time for my 
single desktop, but the monitor
has to be off. I'm not recommending my UPS, though.

> There are a number of things you have to consider here. First of course is
> metadata and filesystem structure integrity. A journalling filesystem
> handles that. Second is data loss. Nothing saves you from data loss but
> backup power. Third is of course the integrity of the electronics with the
> fluctuations in electricity. This is not a big issue with laptops, though,

 planning to use Red Hat 7.2 and extfs3 on my notebook. Data loss is not really a 
problem for me as long as there is
no harm done to the system. I install and configure software with backup power, so I 
only plan to do work (eg: word
processing) without backup power. Will it be fine to do so? I've never used a full 
journaling file system before.

_
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