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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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