[Xen-users] Xen Configuration questions

[Matthew Crocker <mcrocker@xxxxxxxxxxx>]

Hello,

 I'm new to Xen but not to Linux,  I just bought a 10 blade dell  
chassis (10 x 2 x quad core Xeon x 8 GB) and a 4.5 TB iSCSI SAN.    
I'll be running RHEL 5 on all of the blades and I plan on running 4  
Xen children on each blade,  Most Xen children will para-virt RHEL but  
I'll have a couple Win2k3 servers.   The machines will be running  
standard ISP type services (DNS,LDAP,RADIUS,Plesk, SMTP,POP3,IMAP,  
MySQL)   I have couple questions:
1). Is RHEL & Xen ready for prime time?  (is it production ready, will  
I sleep at night?)
2). Each Xen instance will have a LUN on the iSCSI.  Should I connect  
the LUN on Domain0 and then have the DomU load it or  should I have  
each DomU run iSCSI directly with the SAN?  I want to enable live  
migrate between the blades.
3). Are there any pre-built Xen 'Appliances' for common things like  
DNS resolvers?
4). Should I use rsync between the blades to syn the xen configs to I  
can live migrate guest machines between the blades?
My primary concern is #1, if it isn't stable I'll look to VMWare or  
Virtuozzo.  I have a machine running Virtuozzo already and it works  
ok,  Would rather run something open though,  Linux has served me well  
the last 17 years.
-Matt


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