Hi everyone,
I'm new to the list. I'm a systems admin at a multimedia company in New
Zealand. I'm currently constructing a small cluster of dual Xeon machines
which will host web sites in Xen VMs.
I would like to stick with the 'best practices' of the Xen project in terms of
managing the kernel source trees and builds, but I find that the default
build contains a bit more than I would like, and not everything I would need.
For example, I our cluster machines have RageXL graphics adapters, and
therefore I would like to compile in framebuffer support so I can run X. Not
critical, no, but I prefer it especially during my investigations.
I am using the Xen 2.0 bk builds, and the host OS is Debian Sarge. Both seem
to be close to stable releases and so hopefully my timing is going to be
fairly good!
Can I tell the default build system to use a modified .config file for the
kernel build? From the looks of the makefile it appears that much more than
patching and compiling is going on with the kernel, so if I do a make
menuconfig and make my changes, am I able to install the kernel in the normal
way?
The support I'm adding is for SMP, hypterthreading, big memory, and ATI
framebuffer support. I'd also like to pull out various bits and pieces --
mostly drivers for hardware I don't have, as this would speed up the build
process.
Thank you for your time. I've been watching Xen with some interest for a while
now and I'm thrilled that my employer has given me the go ahead to put
together this cluster. I would like to feed the results back to the Xen
project somewhere, especially where it pertains to performance of virtual web
and database servers. It seems that the wiki has gone west (been dead for a
while now), so perhaps it would be appropriate for me to submit stuff back to
this list for archival purposes.
(Speaking of the email archive, could it be modified for searching? I'm sure
my questions have been asked before)
One final question (and this is bound to be unpopular). I would like to have
some idea as to how many virtual web servers I might be able to run on dual
Xeon 2.8GHz machines with 4-12GB RAM. Our sites are typically LAMP, with
medium sized databases. On average, our current web servers are 900MHz PIII
machines that don't often get pushed very hard. Perhaps just some anecdotal
accounts would satisfy my curiosity. I realize I'm not being too practical
here -- my apologies! ;o).
Thanks all for your time.
Regards,
Paul Dorman
Systems Administrator
CWA New Media Ltd.
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