Quote from: rupy on May 22, 2013, 03:48:55 PM

Yeah, but you can't run anything professional with a bitcoind that is restarted every hour.

I think the bitcoin community really needs to move out of the garage; if we're ever going to get this thing going.

You can't go professional running anything on a Raspberry Pi. It's not designed as a professional piece of equipment. Especially something as memory/storage intensive as bitcoin.

Ps. you should probably look at http://binerry.de/post/28263824530/raspberry-pi-watchdog-timer for making sure you can deal with your Pi locking up (never happened to me, but I don't push mine very hard) if you are using it for something important.

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Hm, interesting! I just feel a bit uneasy about feeding the routers "own" power back into it.

Feels like it might work fine until there is a spike in the grid and then: poof your hub is toast, and if you're unlucky your house burns down with it...

Do you know what the USB spec. says about this?

Edit: Please see this quote from a user on the raspberry forum:

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If you leave the red wire intact, (and are thus "back-feeding" the PI, as its commonly called) you are in fact bypassing the PI's F3 polyfuse.

There is one single case I am aware of where this caused trouble when that user also used a badly designed power supply to feed the hub. The power supply wasn't properly regulated, and unloaded it outputted more than six volt! When he plugged it in it triggered the over-voltage protection diode of the PI (which triggers at about six volt) the resulting short circuit current though the diode, unimpeded by any fuse, overheated the diode so much that it melted a hole in the enclosure of his PI!

Its thus much better to "cut the red wire", and not to back-feed the PI!

http://raspberrypi.stackexchange.com/questions/4880/powered-hubs-backfeeding-and-safety has some more useful info. But basically unless you've cheaped out on an unregulated USB hub you won't cause damage, and in most cases things will just work without problems. Neither of my PIs has failed yet, the one which I have always-on hasn't crashed once. (48 days uptime ATM, i.e. since the last time I was rearranging cabling and had to unplug it.) If you're really interested I reccomend looking at some USB hub circuits online...

// Edit: and for some more detail look at http://www.raspberrypi.org/phpBB3/viewtopic.php?f=26&t=17560

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