we are completely restructuring our entire physical network around the vserver 
concept. 

it has proven itself in stability and performance in production to the point 
we no longer see the need for dedicated servers except in the most demanding 
instances (mostly our email server which cannot be run as a guest until there 
is no slow down using > 130 ip addresses).  

in our network restructuring, we wish to use our large storage nfs system and 
place all the vserver guests on that sharing those directories to be mounted 
on the proper dual opteron machine front end as /vservers.

i am seriously thinking of also making /etc/vservers an nfs mount so that each 
host configuration and guests live in a particular area on the nfs to make 
switching machines a breeze if so needed.

does anyone see a problem with this idea? we will be using dual GB nics into 
this nfs system in a pvtnet from each machine to facilitate large amounts of 
data flow. public ip space will still use 100mb nics.

if this can work efficiently (most of our guests are not disk i/o bound.. 
those with ultra heavy disk i/o will live on each front end machine), we can 
consolidate more than 100 machines into 2 front end machines and one SAN 
system. This would free enough rack space that if we don't need any dedicated 
machines in the future we could easily add more than 1500 servers in 
host/guest config in the same space 100 took up. it would also hugely 
simplify backups and drop our electric bill in half or more.


pros?
cons?

-- 

Chuck

"...and the hordes of M$*ft users descended upon me in their anger,
and asked 'Why do you not get the viruses or the BlueScreensOfDeath
or insecure system troubles and slowness or pay through the nose 
for an OS as *we* do?!!', and I answered...'I use Linux'. "
The Book of John, chapter 1, page 1, and end of book


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