[Xen-users] iSCSI target - run in Dom0 or DomU?

[Thomas Harold <tgh@xxxxxxxxxxxx>]

We're working on setting up a test box for an eventual iSCSI SAN.  (I've 
dug through the archives for the last 6 months, but don't see a good 
thread that discusses our situation.)  Both technologies (Xen, iSCSI) 
are new to us, so there's going to be a bit of a learning curve.
The test unit is an AMD Athlon64 X2 4200+ AM2 socket, 2GB RAM, and 
multiple SATA drives.  Since it has the AM2 socket, I believe that it 
supports AMD-V (AMD's virtual technology) so we should be able to run 
unmodified guest OSs on it.  Any guest OSs besides the iSCSI/SAN 
specific tasks will eventually be migrated off to an external box 
(either new SocketF Opteron systems or AM2 Athlon64 systems).
My plan for the disks is to lay software RAID over the disks (RAID1 for 
the first pair, RAID10 for the second set of 6 disks).  Then lay LVM on 
top of mdadm's software RAID before handing it off to iscsitarget to be 
divided up for use by the iSCSI initiators.
Specific questions:

1) The mdadm and LVM will need to happen in Dom0?

2) Should iscsitarget also run in Dom0 or should it be moved into a DomU?

3) I assume that ethernet card bonding should happen in Dom0 with the 
bonded interface presented as a virtual interface to the DomUs?
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