Thanks for the log. Seems there is something at odds with the RAID configuration:
Dec 31 08:27:23 nova dmraid-activate[553]: ERROR: Cannot retrieve RAID set information for isw_cfbejbfeib_Volume1 Dec 31 08:27:23 nova dmraid-activate[554]: ERROR: Cannot retrieve RAID set information for isw_cfbejbfeib_Volume1 Have you further investigated those error messages? This smells like a dmraid issue to me. dmraid needs to properly activate your volumes and mark them as ready, which apparently doesn't happen. Have you tried with mdadm instead?
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