[Xen-users] General Xen setup questions

[Anthony Valentine <avalentine@xxxxxxxxxxxxx>]

Hello everyone!

I am setting up a couple of Xen servers for the first time and I have a 
couple of questions.  Also, as this is my first attempt at using Xen, if 
you spot anything in my descriptions that  looks to be a stupid thing to 
do, please let me know.
As an overview, I will be running 4-5 domU machines on 2 dom0's .  The 
dom0 machines will be doing nothing but managing the domU machines.  I 
will be using an iSCSI SAN for the storage on my domU machines.  All 
OS's will be FC5.

I have not yet decided whether to put my domU OS's on physical 
partitions or on the SAN.  I am leaning toward using the SAN, as that 
will give me the most flexibility and make live migrations easier. 
Thoughts?

Anyone know which will preform better: Mapping the iSCSI drives to dom0 
and assigning them to each domU as a phy (such as /dev/sda) or mapping
them directly on each domU?


I will have 4GB of physical RAM per physical server.  How much of that 
should I reserve for the dom0's, keeping in mind that they will not be 
running any apps of their own, just managing the domU's?

Thanks!

--
Anthony Valentine
Asst. I.T. Manager
Spenard Builders Supply


UNIX was not designed to stop you from doing stupid things, because that 
would also stop you from doing clever things.
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