Re: Suggestions for a SheevaPlug replacement

2011-03-29 Thread David Given
On 28/03/11 05:57, Sander wrote:
[...]
 An OpenRD-Ultimate might be something for you:
 http://www.globalscaletechnologies.com/p-35-openrd-ultimate.aspx

I see the price has come down --- they're now only about 250% the price
of a SheevaPlug... but yeah, one of these would be ideal. Lots of ports
and a nice case, and only a bit more expensive that a DreamPlug.

I also note that there's a SheevaPlug with eSATA, and it's at about the
same price as the original SheevaPlug. Now, if only this had two
ethernet ports...

[...]
 I've ordered a PandaBoard which is dual core, has 1GB RAM and should
 work with the armhf port of Debian. Should be at least twice as fast as
 the SheevaPlug/OpenRD. Unfortunately it has no eSata and only 3x USB, so
 that might not be an option for your.

Oo. *Very* nice! As you say, no eSata and it's only got one ethernet
port, but the dual-core Cortex A9 is extremely yummy. If only there was
a version in the OpenRD form factor...

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Re: Suggestions for a SheevaPlug replacement

2011-03-29 Thread Rtp
David Given d...@cowlark.com writes:

 On 28/03/11 05:57, Sander wrote:
 [...]
 An OpenRD-Ultimate might be something for you:
 http://www.globalscaletechnologies.com/p-35-openrd-ultimate.aspx

 I see the price has come down --- they're now only about 250% the price
 of a SheevaPlug... but yeah, one of these would be ideal. Lots of ports
 and a nice case, and only a bit more expensive that a DreamPlug.

 I also note that there's a SheevaPlug with eSATA, and it's at about the
 same price as the original SheevaPlug. Now, if only this had two
 ethernet ports...

you have guruplugs server which has 2 ethernets and esata. One can
nearly say that dreamplug is some kind of evolution of guruplug servers.

Arnaud


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Re: Suggestions for a SheevaPlug replacement

2011-03-29 Thread Wookey
+++ David Given [2011-03-26 18:35 +]:
 On 26/03/11 17:07, Phil Endecott wrote:
 [...]
  David, if you want to be realistic, you'll find that in almost all cases 
  small
  size, ARM, and even low performance are things that you should expect to 
  pay a
  premium for.  For fun you can try to factor in the reduction in your 
  electricity
  bill, but normally the small x86 (i.e. Atom) box will still be cheaper.
 
 Well, the R3700 consumes (they say) about 25W when running, which is
 about 20W more than the SheevaPlug --- so over a year, the R3700
 consumes about 200 kWh compared to the SheevaPlug's 40. I pay about 10p
 per kWh, so this means that the relative running costs are 20 pounds vs 4...

_per year_, so if you use it for say 3 years that justifies an extra
50 quid. The longer you use it the more you save :-). And 10p/kWh is
very cheap. I'm paying 14p/kWh (flat rate), and power is not going to
get cheaper. (And actually it would be 22 quid all year @10p). At
14p/kWh you can spend an extra 74 quid over 3 years.

Of course in practice disk power consumption matters here (my slug is
2W, the disk 10W), and sleep mode/power save behaviour is much more
important than the headline power consumption when getting an annual
energy use figure. Wall-warts too (where applicable). On some devices
the wall wart uses more than the arm box attached to it. 

Personally I just couldn't bring myself to have a 24/7 server that
used 25W+disk, no matter how cheap it is, because I know how
unecessary that is, and I think energy consumption matters. 

Just pay the money for the cool stuff :-) You know you want to. :-)

Wookey
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http://wookware.org/


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Re: Suggestions for a SheevaPlug replacement

2011-03-29 Thread Tixy
On Tue, 2011-03-29 at 14:42 +0200, Arnaud Patard wrote:
 David Given d...@cowlark.com writes:
[...]
  I also note that there's a SheevaPlug with eSATA, and it's at about the
  same price as the original SheevaPlug. Now, if only this had two
  ethernet ports...
 
 you have guruplugs server which has 2 ethernets and esata. One can
 nearly say that dreamplug is some kind of evolution of guruplug servers.

I wouldn't recommend the Guruplug, the fan sounds like an electric razor
and too loud and annoying to want to be in the same room as it. I
removed the fan and power supply, but ended up junking it anyway as I
couldn't get it to boot reliably from the MMC card. (The MMC controller
is on the end of a USB bus.)

I stuck to using my eSata SheevaPlug when I realised I could run a
firewall with only one ethernet port. [1]

[1] http://lists.debian.org/debian-user/2011/02/msg01207.html

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Re: Suggestions for a SheevaPlug replacement

2011-03-29 Thread David Given
On 29/03/11 13:08, Wookey wrote:
[...]
 Personally I just couldn't bring myself to have a 24/7 server that
 used 25W+disk, no matter how cheap it is, because I know how
 unecessary that is, and I think energy consumption matters. 

Don't forget that the 25W R3700 includes a hard drive, while the
SheevaPlug doesn't.

In fact, my existing server stack (SheevaPlug + external HDD + SSD +
ADSL router + DWL54G + UPS) consumes about 20W, and goes up and down
about 25% depending whether the external HDD is spun up or not. An R3700
based setup would probably use about 35W, I'd say.

I would be able to show you pretty graphs but unfortunately a recent
update to nut has totally broken its ability to talk to my UPS, so I
don't have any server stats any more.

-- 
┌─── dg@cowlark.com ─ http://www.cowlark.com ─
│ I have always wished for my computer to be as easy to use as my
│ telephone; my wish has come true because I can no longer figure out
│ how to use my telephone. --- Bjarne Stroustrup



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Re: nslu2 unstable upgrade broke boot

2011-03-29 Thread Gordon Farquharson
On Wed, Mar 23, 2011 at 04:08, Loïc Minier l...@dooz.org wrote:
  In the bug you pointed at, Dave martin has an useful recipe to start
  debugging issues in the initrd like this one:
  https://bugs.launchpad.net/ubuntu/+source/klibc/+bug/683683/comments/30

The recipe was going so well until:

/ # /mnt/usr/bin/gdb
/bin/sh: /mnt/usr/bin/gdb: not found

Anyway, I'm not really sure what I'd do with GDB. Is there debugging
output that would be useful?

Gordon

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Re: nslu2 unstable upgrade broke boot

2011-03-29 Thread Gordon Farquharson
Hi Joey

On Wed, Mar 23, 2011 at 08:52, Joey Hess jo...@debian.org wrote:

 I did upgrade busybox, too. Seems likely that the new version
 (1:1.18.3-1) is miscompiled on armel, then.

So, does this mean you know how to fix the problem? Is there anything
more I should do?

Gordon

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Re: nslu2 unstable upgrade broke boot

2011-03-29 Thread Joey Hess
Gordon Farquharson wrote:
 Hi Joey
 
 On Wed, Mar 23, 2011 at 08:52, Joey Hess jo...@debian.org wrote:
 
  I did upgrade busybox, too. Seems likely that the new version
  (1:1.18.3-1) is miscompiled on armel, then.
 
 So, does this mean you know how to fix the problem? Is there anything
 more I should do?

No, I have no idea how to fix it.

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