On Thu, Apr 18, 2013 at 11:12 AM, Robert Moskowitz <[email protected]> wrote: > > On 04/18/2013 04:43 AM, Peter Robinson wrote: >> >> On Thu, Apr 18, 2013 at 12:38 AM, Robert Moskowitz <[email protected]> >> wrote: >>> >>> I don't know how support for the Raspberry PI is with Fedora. It is >>> listed >>> as an ARM chip, though a proprietary Broadcom design. It fits here >>> right? >>> >>> What I was thinking was have it powered via POE (either from a switch >>> with >>> POE or a Powerline adapter with POE, I have read of one of these). Put >>> this >>> in a case, and you would have 2 USB ports for drives. >>> >>> About right? >> >> The first problem I see is that you would need to convert the 44V at >> 350ma to the 5V at around 1A that you need to run the RPi properly, >> I'm not sure there's PoE power adapters that can do that. That's >> before you've even provided power to the drive(s). The ethernet also >> runs over the USB which means you've got perf issues that will >> severely limit any form of decent performance and a lot of people have >> said there's issues with the USB bus. > > > I was seeing the drives having their own external power. The reason for POE > was to not tie up one usb port for power.
Your getting confused with your usb ports. The power is provided the microUSB port which isn't a generally usable usb data port. > But the fact that the ethernet is really a usb device kind of really limits > this approach. Not so attractive anymore. Thanks for the information. I don't see how it limits the approach at all, for PoE you'd need to have something inline in the ethernet cable to split the power out to the the power port. > >> >>> Now to find a case that will hold not just the PI, but also the POE card >>> (and the short cable connecting the two, they should have included POE on >>> the board). >> >> Is there a PoE card available that can make those conversions? > > > I had this url at the end of my original post: > > http://www.xtronix.net/datasheets/Raspberry_Pi_PoE_Data_Sheet.pdf > > >> >>> This MIGHT be my next attempt for a NAS after getting the pogoplug >>> working. >> >> If you want something like that I would look at the Cubieboard. The >> A10 devices have a proper PHY attached ethernet and a proper SATA port >> which should give you half decent performance. The support for A10 >> devices at the moment is by a remix (like the RPi) but it's a much >> better speced device and the support will only improve where I can't >> imagine the RPi getting much better than it is now. > > > I will look into it. The remix part does put me off a bit though. It's no different to the RPi, it's currently a remix but rest assured once we have enough of the A10 kernel support upstream it will be a properly supported mainline device. Peter _______________________________________________ arm mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/arm
