The Sheeva Plugs have been rock solid for us. We currently have two sites in production with the sheeva, and have had no failures with the sheeva itself. I just had to go out to a site yesterday to replace a failed SD card, though...but out of the 6 or 7 deployments we've done, we've only had one card failure.
We run gentoo on our sheeva's, mostly to make it easier to build our packages (since gentoo is a build-from-source distro, it made sense to me, and it did simplify a lot of our dependancy problems). We don't use the onboard flash for anything but storage of the kernel; the rest lives on 8GB SD cards (which is plenty). I managed to get our OS image down to about 900MB with Gentoo (I do some fancy stuff with the portage tree). I also like having the image on the SD card, as I'm not wearing the internal nand flash, and I can quickly and easily reconfigure a sheeva simply by swapping the SD. I can also do a lot of setup on my desktop more easily than if I used the internal flash. In case it wasn't otherwise obvious, the sheeva does run arm, not x86. --Jim On Wed, May 12, 2010 at 4:56 AM, Rob Conway <rjcon...@bigpond.com> wrote: > Jim, > > I really like the idea of those sheeva plugs. Have they been reliable ? Do > you run Ubuntu ? > > rob > > -----Original Message----- > From: Jim Kusznir [mailto:jkusz...@gmail.com] > Sent: Tuesday, May 11, 2010 8:13 AM > To: OWFS (One-wire file system) discussion and help > Subject: Re: [Owfs-developers] Battery Backup of 1wire network. > > > For our applications, having the bus powered without the PC wasn't useful, > so we just took the approach of running a power-efficient system (Sheeva > Plug) and use the usb adapter to power the bus. Placing that on a UPS (very > easy solution) handles it for a while; alternatively, the sheeva runs on > +5VDC at a couple amps, so a 12V->5V switching regulator and a deep cycle > battery would be easy and very long-running (and allows your computer-based > applications to continue to function with the onewire bus). To date, we've > just used the UPS solution; with the sheeva plug, a small UPS (350VA, ~$50) > will run the network and computer for at least an hour or two. Replacing > the 7AH battery with an external deep cycle battery would offer > significantly longer runtimes without much hassle. > > --Jim > > On Wed, May 5, 2010 at 1:24 AM, Rob Conway <rjcon...@bigpond.com> wrote: >> Hi List, >> >> I was wondering if anyone has provided a battery backup for the 1wire >> power. As I expand and use more of the BAE910 intelligent slaves it >> becomes a good option to keep these devices powered during power >> outages. >> >> I have two USB adapters one has a hub installed and the other has >> sensors directly connected. >> >> HUB I know the hub has an onboard power connection and voltage >> regulator inside so I suppose this should be easy, however really >> wanted to somehow just use a battery pack and some diodes. Direct >> connect to USB ...This maybe a little more interesting as I currently >> use the USB power for the network >> >> I was probably hoping to keep it real simply and use a couple of high >> quality AA batteries in a battery pack to provide say 4.5VDC. I know >> my problem will be the ADC within he BAE910 as I assume it references >> the supply. >> >> Has anybody got a simple battery backup on their network to keep the >> sensors alive ? >> >> rob >> >> >> ---------------------------------------------------------------------- >> -------- >> >> _______________________________________________ >> Owfs-developers mailing list Owfs-developers@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/owfs-developers >> >> > > ---------------------------------------------------------------------------- > -- > > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.819 / Virus Database: 271.1.1/2862 - Release Date: 05/09/10 > 04:26:00 > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
