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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..

Cheers,
Anthony


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Anthony Goddard
Woods Hole Marine Biological Laboratory



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