On Thu, Oct 16, 2008 at 04:26:17PM -0400, Celejar wrote:
> On Thu, 16 Oct 2008 13:46:30 -0400
> "Douglas A. Tutty" <[EMAIL PROTECTED]> wrote:
> > On Thu, Oct 16, 2008 at 12:35:17PM -0400, Celejar wrote:
 
> I understand that I don't need much processing power; that's why I was
> thinking of an embedded solution, i.e. openwrt on a router. 
 
I can see going that route if physical space is an issue, however you
may find that a used laptop (e.g. with a broken screen) is cheaper.
Many local computer stores take in old boxes for recycling; perhaps one
of those for $25 would do everything and be chaper than the router.

One way to reduce the power consumption is to not put a big PSU in the
box: efficiency is quite low in the low-percentage output range.  I'd
rather have a 100W PSU running at 50% (still overkill, but I haven't
seen a 50W PSU) than a 500W running at 10%.  The former will suck less
juice from the wall.

Then look at what you put in the box.  Instead of a high-end (even if
cheap) video card, use a generic PCI card, assuming that the board
doesn't have integrated graphics (like my 486 has).  Of course if your
box will boot without a card at all (once you get the BIOS set up), so
much the better.  Set the box to use serial console.

As for performance, consider if you'll be encrypting the data over the
network or transfering by NFS and compressing on the backup box.  My
486 couldn't keep a 10 MB/s ethernet NFS share saturated if I expected
it to create the tarball.  

Doug.


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