[mythtv-users] UPS with mythbuntu

Dick Steffens dick at dicksteffens.com
Wed Feb 25 19:06:34 UTC 2015


On 02/25/2015 10:41 AM, Eric Sharkey wrote:
> On Wed, Feb 25, 2015 at 3:03 AM, Simon Hobson <linux at thehobsons.co.uk> wrote:
>> In rural areas in particular, there are still a *lot* of overhead phone cables strung for miles
> It's all overhead in many places.  Power, TV, phone, NSA monitoring
> network lines....  it all goes on the poles.
>
>> Where I used to work, we were on the end of a rural distribution network of overhead cables (11kV, we had our own substation). I found that power cuts generally fell into one of a small range of lengths :
>> - A few seconds - [..]
>> - A few minutes - [..]
>> - 90 minutes +/- only a few - [..]
>> - "Hours" - [..]
> My record outage so far is a few hours short of 7 days.  The UPS on my
> backend couldn't survive that one.  Thankfully that sort of thing
> doesn't happen very often.

Out here in the wilds of suburban Portland, OR, back in the '90s we used 
to get power outages of up to a week during winter ice storms. It was 
regular enough that, back in '99 or so, we invested in a 5000 watt 
generator and a separate breaker panel with a transfer switch. We've 
used it, I think, less than ten times. The power company did a good job 
of tree pruning along the route to our place, and the weather has been 
somewhat less troublesome. We still get the occasional ice storm, but 
nowhere near as many as before.

I have a UPS on each of my systems. They easily carry me through the 
minor blips and hiccups, but don't last long when the power actually 
goes out. I have enough time to go around and gracefully shut things 
down, if I'm here. I've never had a problem recovering from a power 
outage, though. So far I haven't had one while we were recording 
something. I've had more trouble with my FE/BE Myth machine freezing up 
than loosing power. We were watching a program while Myth was recording 
it when the machine froze up. I restarted the box, and the recording 
picked up again. We missed a few minutes of the show, but otherwise it 
worked just fine. Kudos to the developers who set things up so that a 
program will record, even if the box is turned on after the show starts.

-- 
Regards,

Dick Steffens



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