Have you just applied Windows 2008 R2 SP1?
This is a new node we are trying to add to the existing two node cluster group. I have read somewhere that this issue is a known one and it pops when we try to add more nodes to the existing two node cluster group.
How many nodes are already in the cluster?
2 nodes
How many clustered applications do you currently have installed?
SQLserver and MSDTC
Can you supply details of the validation report?
I am having a hard time to attach the file. The exact error can be seen in the following link. Let me know if you need the complete report.
http://jackiechen.org/2012/04/16/validate-scsi-device-vital-product-data-vpd-failed/