Cluster Validation Test says "Physical disk does not have the inquiry data (SCSI page 83h VPD descriptor)", no disks available as cluster resource

Hi there,

just set up a 2 node cluster with HCL listed hardware:
Windows Server 2012 R2 DC fully patched with latest Fujitsu MPIO DSM
Fujitsu Primergy RX300 S6 with 2 QLogic 2560 FC HBA each (latest drivers)
Fujitsu Eternus DX90S2 FC storage (latest firmware)

All volumes are visible/accessible by both nodes. Volumes are initialized, partitioned and NTFS formatted and set online for the 1st node. Volumes are offline for the 2nd node.

Running cluster validation tests ends up with error "Physical disk {...} does not have the inquiry data (SCSI page 83h VPD descriptor)". Additionally no disks are available as cluster resources.

Any idea welcome.

Thanks a lot.

Te.Be.