[Xen-users] Few questions about Xen

["Mindaugas" <mind@xxxxx>]

 Hello,

 On the wait for RHEL5 we're considering to move some of our servers under 
Xen. So few questions appeared. :)
 - how to "clone" domU server? With posibility to change IP address, turn 
off some services before start.
 - is it possible to allow domU server to access some specialized PCI card? 
E.g. some telco card or Dolphin SCI card for MySQL Cluster?
 - is there some advantages for running Linux/Linux combination on 
VT/Pacifica enabled CPUs?
 - what "part" of OS has the biggest performance hit running under Xen? 
Disk operations? Process scheduling? Network latency? Or something else?
 In HP EVA best practices guide I read that for perfomance one have to 
create as few LUNs as possible. But if for every domU server I'll create 
separate LUN the number of LUNs will be quite high. Is it possible to reduce 
this number and still retain live migration capability and store domU 
server's data on SAN?
 Thanks,

 Mindaugas


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