low power linux server
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From: Thad Floryan on 24 Oct 2009 10:41 On 10/24/2009 2:30 AM, notbob wrote: > I'm looking for cheap low power linux server solution. I guess I > could hook up an old desktop, but I have nothing below 200W PS. I've > been looking at the sheevaplug wall wart thing and mini-ITX systems > and other options like the waysmall, but they all seen pretty pricey. > I only need something to serve as a dedicated irc server that would > draw no more than 10-20W and use a flash drive and be ethernet > capable. What else should I be looking at? Seems there should be > something out there in the $50 range. Sheevaplug is US$100, draws 5 Watts, GigE, USB 2.0, 1.2GHz ARM cpu, etc. A few pix of one of mine: <http://thadlabs.com/PIX/SheevaPlug_first.jpg> <http://thadlabs.com/PIX/SheevaPlug_labelled.jpg> <http://thadlabs.com/PIX/SheevaPlug_underside.jpg> <http://thadlabs.com/PIX/SheevaPlug_ext_HD.jpg> If you want a complete system with a bazillion ports (incl. 2 GiGE) and also very low power in operation using the same ARM CPU, check this out: <http://www.globalscaletechnologies.com/t-openrdcdetails.aspx>
From: Sheridan Hutchinson on 24 Oct 2009 23:27 notbob wrote: > I'm looking for cheap low power linux server solution. I guess I > could hook up an old desktop, but I have nothing below 200W PS. I've > been looking at the sheevaplug wall wart thing and mini-ITX systems > and other options like the waysmall, but they all seen pretty pricey. > I only need something to serve as a dedicated irc server that would > draw no more than 10-20W and use a flash drive and be ethernet > capable. What else should I be looking at? Seems there should be > something out there in the $50 range. > > nb If you can get access to an old Thinkpad from the X range you might have what you need in one of them. The power draw (measured with an adaptor in the wall) is around 20-30 watts on my X40 with the lid closed so that the display is turned off. For $50 though I don't think there's enough in the budget for what you want. Unless of course you'd be happy with maybe a router with DDWRT firmware (I think it's spelled like that). You could install an IRC server to one of those things if you have no better alternative. For what it's worth, my Thompson ADSL router uses around 5 watts of power and is completely passively cooled out of the box. -- Regards, Sheridan Hutchinson sheridan(a)shezza.org
From: Chris Hills on 27 Oct 2009 12:30 On 24/10/09 16:41, Thad Floryan wrote: > If you want a complete system with a bazillion ports (incl. 2 GiGE) and > also very low power in operation using the same ARM CPU, check this out: I really like these devices. The only thing missing from the plug that i would like is a built in slot for a 2.5" disk. Having an extra cable can be a pain to manage, and looks unsightly. I suppose it wouldn't take much to construct a new enclosure from scratch.
From: Thad Floryan on 27 Oct 2009 13:02 On 10/27/2009 9:30 AM, Chris Hills wrote: > On 24/10/09 16:41, Thad Floryan wrote: >> If you want a complete system with a bazillion ports (incl. 2 GiGE) and >> also very low power in operation using the same ARM CPU, check this out: > > I really like these devices. The only thing missing from the plug that i > would like is a built in slot for a 2.5" disk. Having an extra cable can > be a pain to manage, and looks unsightly. I suppose it wouldn't take > much to construct a new enclosure from scratch. Actually, the OpenRD clientclient has a spot onboard for a 2.5" HD, but it's not visible in the picture(s) here: <http://www.globalscaletechnologies.com/t-openrdcdetails.aspx> The SheevaPlug is physically too small to accomodate an internal 2.5" HD; the insides of a pre-production model can be seen here: <http://www.cyrius.com/debian/kirkwood/sheevaplug/gallery.html> I should put up a page with more pictures including the insides of the production models. The SheevaPlug does have an SD slot and a JTAG connector, too, for debug purposes. I only use the external 2.5" HD in the USB enclosure for doing compiles (that I don't care to do on another Linux box using the cross- development software). The SheevaPlug has onboard FLASH; here's what it looks like with only its internal FLASH memory: root(a)debian:~# df Filesystem 1K-blocks Used Available Use% Mounted on rootfs 519168 194220 324948 38% / tmpfs 257816 0 257816 0% /lib/init/rw varrun 257816 268 257548 1% /var/run varlock 257816 0 257816 0% /var/lock udev 257816 4 257812 1% /dev tmpfs 257816 0 257816 0% /dev/shm tmpfs 257816 0 257816 0% /var/cache/apt and here it is when I connect the external WD USB drive (from Costco): root(a)debian:~# df Filesystem 1K-blocks Used Available Use% Mounted on rootfs 519168 194244 324924 38% / tmpfs 257816 0 257816 0% /lib/init/rw varrun 257816 268 257548 1% /var/run varlock 257816 0 257816 0% /var/lock udev 257816 12 257804 1% /dev tmpfs 257816 0 257816 0% /dev/shm tmpfs 257816 0 257816 0% /var/cache/apt /dev/sda1 244136352 119008 244017344 1% /media/usbhd and FWIW: root(a)debian:~# date Tue Oct 27 16:57:32 UTC 2009 root(a)debian:~# uptime 16:57:35 up 6 days, 3:03, 1 user, load average: 0.30, 0.23, 0.13 root(a)debian:~# uname -a Linux debian 2.6.22.18 #1 Thu Mar 19 14:46:22 IST 2009 armv5tejl GNU/Linux root(a)debian:~# cat /proc/version Linux version 2.6.22.18 (dhaval(a)devbox) (gcc version 4.2.1) #1 Thu Mar 19 14:46:22 IST 2009 root(a)debian:~# cat /etc/issue Ubuntu 9.04 \n \l it had been up since late August, but two recent area power failures (2h45m and 5h45m) were longer than any of my UPSs could keep my LAN and systems up.
From: Thad Floryan on 27 Oct 2009 13:26 On 10/27/2009 10:02 AM, Thad Floryan wrote: > [...] > The SheevaPlug does have an SD slot and a JTAG connector, too, for debug > purposes. I only use the external 2.5" HD in the USB enclosure for doing > compiles (that I don't care to do on another Linux box using the cross- > development software). You may get a kick out of seeing this: root(a)debian:~# pwd /root root(a)debian:~# ed hw.c hw.c: No such file or directory a #include <stdio.h> main(){printf("Hello world!\n");} .. w 53 q root(a)debian:~# make hw cc hw.c -o hw root(a)debian:~# file hw hw: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, not stripped root(a)debian:~# gcc --version gcc (Ubuntu 4.3.3-5ubuntu4) 4.3.3 Copyright (C) 2008 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. root(a)debian:~# ./hw Hello world! root(a)debian:~# ll hw* -rwxr-xr-x 1 root root 9554 Oct 27 17:21 hw* -rw-r--r-- 1 root root 53 Oct 27 17:21 hw.c
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