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[Vishvananda Ishaya <vishvananda@xxxxxxxxx>]

You will likely have to write a nova-volume/cinder backend to talk to the dell SAN directly. You could probably base it on the HP lefthand san code and get something working pretty quickly:


https://github.com/openstack/nova/blob/master/nova/volume/san.py

Vish

On Aug 2, 2012, at 2:31 AM, Bilel Msekni <skible@xxxxxxxxxx> wrote:

> Hi all,
> I have a question relating to nova-volume, and provisioning block devices as storage for VMs. As I understand it from the documentation, nova-volume will take a block device with LVM on it, and then become an iSCSI target to share the logical volumes to compute nodes. I also understand that there is another process for using an HP lefthand SAN or solaris iSCSI setup, whereby nova-volume can interact with APIs for volume creation on the SAN itself.
> 
> I have a dell iSCSI SAN, and I can see that I'd be able to mount a LUN from the SAN on my nova-volume node, then go through the documented process of creating an LVM on this LUN and having nova-volume re-share it over iSCSI to the compute nodes, but what I'm wondering is whether I can have the compute nodes simple connect to the iSCSI SAN to access these volumes (which would be created and managed by nova-volume still), rather than connect each compute node to the iSCSI target which nova-volume presents? I imagine with this setup, I could take advantage of the SAN's HA and performance benefits.
> 
> Hope that makes sense..
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