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xen-users
I'm just curious what some of you guys out there are using for remote
storage with XEN. We currently are a service provider using xen for our
customers virtual servers. Right now each server is deployed with a
raid controller and 4 disks in a raid 10 configuration. The raid
controller + BBU are not cheap and add an extra expense to the server.
Not only that but disk IO is what causes us to deploy a new host. For
the most part these servers end up with a lot of unused Ram, CPU, and
Disk Space. What we are considering doing is setting up a SAN,
something like a 48 disk raid 10 array that the hosts can be attached to
some how.
I'm curious what some of you guys out there are doing and or using. Our
virtual servers right now are PVM's with logical volumes attached. I've
been looking at ISCSI but the problem I'm seeing with ISCSI is that the
disks that are exported to the initiator just pop up as /dev/sd devices
and there seams to be no simple way to map that device to the guest
easily using our automation system. I've also been looking a little
into AOE but not sure if that would work. If we did disk based images
the solution for the most part would be easy, but from what I've read
LV's attached to the guest perform a lot better than a raw disk image.
Hopefully some of you can pass on your experience! Thanks!
~Shaun
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