Came across this post in xenserver forum and was wondering if anyone had tried it. They were referring to another san solution.

Hi,
I was able to find workaround for this problem. If you want to use scst as iscsi solution do:

use ietd for initialization of lun and add it as SR
change from ietd to scst
it schould work, from some reasons same device under ietd can be added and initialized but not under scst, hoever once that device is added as SR you can normaly use scst.

To add any others devices you will have to change iscsi daemon to ietd.

Best regards,
Bartosz Jaskiewicz