[K12OSN] network design

Petre Scheie petre at maltzen.net
Tue Feb 8 14:26:40 UTC 2005

Note that the two most commonly used applications, OpenOffice.org and 
Mozilla/Firefox, don't lend themselves to open-mosix clusters, the problem being 
of the apps won't migrate from one node to another as needed.  There was some 
discussion of this on the list about a year ago, so check the archives.  An 
alternative way to spread the load over multiple servers would be to dedicate 
each app to its own server, and have the LTSP server just provide the users' 


Paul Satherley wrote:
> Sharon Betts wrote:
>> Hello everyone -- can I get a discussion going to help me sort out my
>> plans?
>> I would like some input on my network design.  I have 4 schools and a
>> business office; 3000 users; and over 1000 machines (growing by leaps and
> LTSP scales to 30 thin-clients per 4G ram and a dual Cpu box..with that 
> in mind.
> My idea for a design  would to create LTSP Nodes ie (Ltsp-mosix + 2 cpu 
> (64 bit) +4G ram + switch (32 x (10/100) + 1x 1000) Mbps ports
> These server would located in the wiring closest with rack mounted 2U 
> servers with a 32 10/100/1000 switch for 32 clients.
> the server would connect back via gigabit to a centrally sited say 
> (e-smith-mosix) server with large SCSI raid fast single cpu 4G ram
> and tape backup or dual layer DVD rewriter ..this would do your   domain 
> /homes /ldap-/samba and mail, squidguard  etc...
> because the Nodes are identical and modular management and replacement 
> in the event of failure would be straightforward.
> ideally your clients would all be the same...  say 17"LCD with built in 
> Amd Geodes with 64M Ram nice and tidy.
> I your main office you would have another e-smith server identical the 
> the school ones (for simplicity)
> you would setup management (e-smith server-manger etc ) rsync critical 
> stuff...  sit back and admire your empire...
> now all you need is to fill in the blanks
> Eric is trialling 64 bit ltsp..... throw in mosix?? excellent..
> throw in working LDAP authentication
> e-smith has excelent design and is rock solid
> ..
> cheers
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