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Diskless LVS.

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Diskless LVS.
From: Bryan <bryan@xxxxxxxxxxxx>
Date: Thu, 7 Jun 2001 19:22:57 -0400
Greetings,

 I have a question. A client of mine requires a highly scalable HA web 
server. The total volume of php scripts and html for the site are minimal ( < 
2 MB ) I am considering proposing an lvs-dr setup where each node is 
diskless. The director would be diskfull and a hot-backup installed.  The 
nodes would boot off their NICs, download a kernel image and mount an NFS 
root filesystem off the director ( or another box if this load is too high ). 
The node then would create a 2 MB ramdrive and rsync the php files and htdocs 
to it. Then they would signal the director they are ready to be added to the 
load balancing pool and receive hits.

 My question is: Is the ramdisk really necessary to acheive optimal 
performance/dollar spent considering Apache's inherent caching mechanisms? 
Secondly, diskless motherboards are seemingly very hard to find. In an ideal 
world I would find a 200 MHz FSB (dual would be amazing) Socket A with 
onboard 2 port bootable NIC and enough room for 1GB ram. Does such a beast 
exist out there? Or anything close?

Any help is appreciated.
-- 
<=====================================>
Bryan Mongeau
Lead Developer, Director
eEvolved Real-Time Technologies Inc.
Website: http://www.eevolved.com
Public key: http://eevolved.com/bcm.pk
<=====================================>

"... the true utility function of life, that which is being maximized in the 
natural world, is DNA survival. But DNA is not floating free; it is locked up 
in living bodies and it has make the most of the levers of power at its 
disposal." -- Richard Dawkins


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