(Answer) (Category) LON-CAPA User Help : (Category) Server System Administration :
What hardware does LON-CAPA require?
Hardware Recommendation
-----------------------

For full-time, classroom usage, an adequate LON-CAPA server
should be/have:

* a multiprocessor machine,
* a CPU speed of 1 gigahertz,
* a gigabyte of memory,
* and at least 40 to 80 gigabytes of hard disk space.

A lesser machine can be used for toying around with LON-CAPA
(LON-CAPA will run for a single user on most any machine).

LON-CAPA servers experience significant peaks of activity
before a homework submission deadline.  To support these critical
peaks of activity, it is strongly advised that LON-CAPA machines
fit the above recommendation.

If thousands of students start accessing the box as a web server...
well you may want to consider more options.  The design of the LON-CAPA
system is to naturally and transparently load-balance on multiple
computer clusters.  So, a simple solution for running an entire
college campus is to just have an adequate plurality of LON-CAPA
servers rather than a single, particularly monstrous server.

We like to think of high web server usage as "a good problem" though.. :)

More Information on Hardware and System Administration
------------------------------------------------------

I find that LON-CAPA works nicely (for development purposes)
on a Pentium II, 20 gigabytes of hard-disk space, 256M RAM,
and 400MHz.  The consensus is though, that this may only
be adequate for a class of a dozen students. 

If you are making a serious investment, we suggest you
join our mailing list by visiting
http://mail.lon-capa.org/mailman/listinfo/lon-capa-admin
By posting to this mailing list, you can learn about what
solutions have worked for others.

We support Linux OS.  LON-CAPA has been shown to work on Debian,
Mandrake, and RedHat.  Instructions are based on RedHat-centric
installs.  Given the current level of new LON-CAPA feature requests
and frequency of new software versions, we suggest that you stick
with RedHat to reduce high-frequency system administration overhead.
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