[Server-devel] Two separate sets of install scripts?

[Greg Smith (gregmsmi)]

Hi Tony et al,

I think Sulochan or Bryan need to confirm on these points. 

FYI I will be on the road most of the next three weeks so address any
specific questions directly to them. I'll watch and try to extract any
consensus or decisions for posting in the wiki.

BTW I may have recruited 1 - 3 more volunteers from the XO support gang
to build Nepal style XSX machines. I'll let them confirm when ready. My
goal is to document a very well defined Nepal implementation by the
first week of March. Test beds can mirror that so any problems, bugs or
new features can be reproduced and verified before being deployed in
production in Nepal. That may be optimistic but we'll see...

The hardest thing to reproduce may be 200 x Xos all squawking on the
Mesh at the same time. I wonder if we could capture an ethereal
(http://www.ethereal.com/) or TCP dump of all traffic on an active XO.
Then emulate the XO (QEMU?) on a high end server, generate the same
traffic (http://wiki.ethereal.com/Tools) and send it out at 200x
original data rate. That wont emulate 200 radios or 200 clients but it
may help quantify the performance of the XSX under load (e.g. HTTP, BW,
CP/SCP over mount (NFS?) etc.) Just an idea, target phase 2.

There's still room for more test beds so just reply here to get in the
loop. There's no need to sign an SLA :-) You just need motivation, and a
box.

Thanks,

Greg S

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Message: 1
Date: Wed, 13 Feb 2008 10:02:04 -0700
From: Tony Pearson <tpearson at us.ibm.com>
Subject: [Server-devel] Two separate sets of install scripts?
To: server-devel at lists.laptop.org
Message-ID:
	
<OF39537AAA.E08D1ECC-ON072573EE.005CE53E-072573EE.005D985F at us.ibm.com>
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Greg,
Ok, I see the new topology in  your last post

XO <-> XS/default gateway <-> Squid <-> Internet 

Q1- Are we having two XS machines and one Squid box, or is it one and
one as shown in the diagram?
Q2 - Are we going to try to have the same XS-150 build for both but just
activate certain features on each, or try to have customized install
scripts?
In other words, we could take the XS-150 base, install MySQL, install
PHP modules, install Moodle, Install Squid.  Then on the XS we activate
MySQL and Moodle, be don't activate Squid, and on the Squid box, we
don't bother to turn on MySQL and Moodle, but there are there as backup
for each other just in case?
Q3 - Do we want to consider a failure scenario where one or the other
box fails, and run everything from a single machine?  In other words,
the box is bilingual, can be either a XS or a Squid or both, and
configured with easy to use scripts or PHP webpages.
Q4 - Will XS reverse proxy its own server content?  I have been looking
into eAccelerator and a few others that can help speed up the MySQL
calls.

I have been told I will get my Active Antenna sometime this week, so
will be able to run a better test this weekend.




Tony Pearson
Senior Storage Consultant, IBM System Storage?
Telephone: +1 520-799-4309 |  tie 321-4309 |  Cell: +1 520 990-8669
email: tpearson at us.ibm.com |  GSA: http://tucgsa.ibm.com/~tpearson
Blog: http://www.ibm.com/developerworks/blogs/page/InsideSystemStorage 
AKA: 990tony Paravane, eightbar specialist