[K12OSN] Preparing K12Linux F11
Terrell Prude' Jr.
microman at cmosnetworks.com
Fri Jun 5 04:34:08 UTC 2009
Jeff Siddall wrote:
> Steven Santos wrote:
>
>> Terrell,
>>
>> I think the case for LTS is as strong today as it always has been.
>>
>> I completely agree with you on including LTS 4.x in a Centros version.
>>
>> Where I disagree with you is on legacy hardware being the driving factor.
>> Cost of operation is still the leading factor as far as I am concerned.
>>
>
> I second that.
>
> I am new to LTSP and am rolling it out in a 10 user office on brand new
> hardware specifically because it is cheaper to support than an office
> full of fat clients.
>
> In my case I have one LTSP server (Phenom II X4 + 8 GB RAM) + 10
> mini-ITX thin clients (Intel Little Falls board + Morex T3310 + 1 GB RAM
> + 24" LCD).
>
> The server hardware cost about $1200 and the client hardware costs about
> $460 each for a total of $5800.
>
> Previously each of these 10 users was getting a $1000 Windows PC every 4
> years for a total of $10000. Even if _all_ the LTSP equipment is
> forklifted every 4 years (which is unnecessary -- at least for the
> clients) then the total hardware cost of LTSP is still about 40% less
> than Windows fat clients.
>
> Add to that the energy savings of more than $2000 every 4 years, plus
> the centralized support savings and there is still an excellent business
> case to be made for LTSP on _brand new_ hardware.
>
> Jeff
>
I'm seeing two flaws in Jeff's argument. The first is that he's
comparing $1000 MS Windows PC's to an LTSP lab. I, by contrast, am
comparing $300 Ubuntu GNU/Linux machines to an LTSP lab. BIG
difference. The second is that I'm talking about an LTSP 5 lab, not
LTSP 4, with the business-case question. An LTSP 5 solution requires
considerably beefier hardware, client and server both, than LTSP 4.
Now, do that above calculation for a typical 20- to 30-seat K-12
computer lab, and the LTSP 5 solution just got considerably more
expensive by comparison. The "ongoing maintenance" argument won't fly;
the decision-makers will see that greater up-front cost and say "NO!" to
LTSP-anything. Remember, our expertise is geekdom; theirs is
administration/education. Different skill sets.
If we stick with LTSP 4, though, we can continue to reuse old PC's or
even use $100 thin clients instead of $460/seat. That $1200 server Jeff
mentioned just became a fire-breathing screamer; I've done it on a a
dual Athlon MP with 4GB DRAM. Now, we just got way cheaper than even
the $300 ZaReason boxes, and our case for LTSP remains very strong.
--TP
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