[K12OSN] Re: K12LTSP

[Tom Wolfe]

Sorry for the delay, busy with the birth of my new little girl.

In response to the sub-thread last week about servers...

The server I've got going right now is a little over the top in
comparison with Rob's:

Dual Core 2212HE Processor; 2X1MB Cache, 2.0GHz Opteron, 1Ghz HyperTransport
Dual Core Opteron 2nd Processor, 2x1MB Cache, 2.0GHz1Ghz HyperTransport
8GB Memory, 4x2GB, 667MHz Dual Ranked DIMMs
RAID-1 2 x 160GB, SATA, 3.5-inch 7.2K RPM Hard Drive
SAS 5IR SAS, PCI-Express Internal RAID Adapter

...and it cost about $3800 CDN. BUT, right now it's powering 45
workstations and I'm hoping to get 40 more going (which might require even
more RAM if they are all going to be firing at once). Maybe a little
overoptimistic. But...  even at 45 I feel I have my money's worth. "One
server to rule them all...." it sure makes administration easy. Linking
them all I have a 1 Gig 8-port network card that is utilizing existing
Cat-5e cable to the four labs it's running. At each lab I have either a 5-
or 8-port Gig switch (<$100 CDN) or a larger switch (24 port) with 2 1-Gig
ports so that the labs are serviced by 1 Gig, but each workstation only
gets 100 Mbps max.

So far so good. One teacher here is totally stoked, literally giddy with
excitement. He's the one that pushed me to get the Flash With Sound going.
And now he wants to add all of his spelling words to Childsplay! (any
takers on explaining how to do that one by the way?)

Regards,
Tom Wolfe

On Thu, 3 May 2007, Rob Owens wrote:

> I only need to serve about 8 right now, but I overbuilt the system
> since it was so cheap.  Hopefully down the road it'll be doing 15 or so.
> It's being put to use in an office, so they're not really using anything
> graphics-intensive.
>
> By the way, I named the server "harrison", after Eric!
>
> -Rob
>
> On Thu, May 03, 2007 at 07:05:47AM -0500, Joshua Sommermeyer wrote:
> > How many clients do you anticipate this serving?
> >
> > _________________________________________
> > Joshua D. Sommermeyer
> > Assistant Principal - Technology Director
> > Concordia Lutheran High School
> > (o) 281.351.2547
> > (f) 281.255.8806
> > www.concordiacrusaders.org
> > sommermeyerj at concordiacrusaders.org
> >
> > +++The Mission of Concordia Lutheran High School is to Build Lives of
> > Excellence upon the Foundation of Christ. +++
> >
> >
> > -----Original Message-----
> > From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On
> > Behalf Of Rob Owens
> > Sent: Wednesday, May 02, 2007 7:26 PM
> > To: Tom Wolfe; Support list for open source software in schools.
> > Subject: Re: [K12OSN] Re: K12LTSP
> >
> > On Wed, May 02, 2007 at 02:56:19PM -0400, Tom Wolfe wrote:
> > > When you're ready to roll in a serious way I would advise considering
> > > getting a powerful and reliable server with RAID-1, fast hard drives,
> > dual
> > > 64-bit processors, etc. just so that the experience starts off well
> > and
> > > runs reliably. I'm sure lots of folks use old equipment for servers,
> > but
> > > since it's the backbone of your network, splurge a little. That said,
> > > 64-bit is not as well supported as 32-bit and will cause you a few
> > > headaches with software compatibility (Flash being the most
> > notorious).
> >
> > For reference:  I just bought a desktop-class machine to use as a
> > K12LTSP server with the following specs, for $700
> >
> > AMD AM2 5000 dual core, 64 bit processor
> > 2 GB 800 Mhz ram
> > 2x 320 GB SATA hard drives (set up w/ software RAID-1)
> > Onboard 1000 Mbps LAN
> > Onboard audio and video
> > DVD burner
> > Tower style case with room for 6x 3.5" drives and 4x 5.25" drives
> > no keyboard, monitor, or mouse
> >
> > I got it unassembled.  Assembly would have cost another $50.
> >
> > -Rob
> >
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