Failed at Validate SCSI-3 Persistent Reservation

Hi All...

I'm trying to validating my 2 node cluster in win server 2008.
I receive this error :

Failed at Validate SCSI-3 Persistent Reservation

Validate that storage supports the SCSI-3 Persistent Reservation commands.
Validating Cluster Disk 0 for Persistent Reservation support
Registering PR key for cluster disk 0 from node dbw01.dbpmain.gov.my
Putting PR reserve on cluster disk 0 from node dbw01.dbpmain.gov.my
Attempting to read PR on cluster disk 0 from node dbw01.dbpmain.gov.my.
Attempting to preempt PR on cluster disk 0 from unregistered node DBW02.dbpmain.gov.my. Expecting to fail
Registering PR key for cluster disk 0 from node DBW02.dbpmain.gov.my
Putting PR reserve on cluster disk 0 from node DBW02.dbpmain.gov.my
Unregistering PR key for cluster disk 0 from node DBW02.dbpmain.gov.my
Trying to write to sector 11 on cluster disk 0 from node dbw01.dbpmain.gov.my
Trying to read sector 11 on cluster disk 0 from node dbw01.dbpmain.gov.my
Attempting to read drive layout of Cluster disk 0 from node dbw01.dbpmain.gov.my while the disk has PR on it
Trying to read sector 11 on cluster disk 0 from node DBW02.dbpmain.gov.my
Attempting to read drive layout of Cluster disk 0 from node DBW02.dbpmain.gov.my while the disk has PR on it
Failed to read drive layout of Cluster disk 0 from node DBW02.dbpmain.gov.my, status 21
Cluster Disk 0 does not support Persistent Reservation
Validating Cluster Disk 1 for Persistent Reservation support
Registering PR key for cluster disk 1 from node dbw01.dbpmain.gov.my
Putting PR reserve on cluster disk 1 from node dbw01.dbpmain.gov.my
Attempting to read PR on cluster disk 1 from node dbw01.dbpmain.gov.my.
Attempting to preempt PR on cluster disk 1 from unregistered node DBW02.dbpmain.gov.my. Expecting to fail
Preempt of PR on cluster disk 1 from unregistered node DBW02.dbpmain.gov.my succeeded, or PR got removed
Cluster Disk 1 does not support Persistent Reservation
Validating Cluster Disk 2 for Persistent Reservation support
Registering PR key for cluster disk 2 from node dbw01.dbpmain.gov.my
Putting PR reserve on cluster disk 2 from node dbw01.dbpmain.gov.my
Attempting to read PR on cluster disk 2 from node dbw01.dbpmain.gov.my.
Attempting to preempt PR on cluster disk 2 from unregistered node DBW02.dbpmain.gov.my. Expecting to fail
Preempt of PR on cluster disk 2 from unregistered node DBW02.dbpmain.gov.my succeeded, or PR got removed
Cluster Disk 2 does not support Persistent Reservation
Test failed. Please look at the test log for more information

I'm not sure on how to explain my SAN storage configuration since it was configured by my system engineer. But if somebody can explain me why this happened first so i can explain the reason so my SE can look into this issue..

Also once this test is FAILED, other test like :
Validate Disk Arbitration, Validate Disk Failover, Validate File System, Validate Multiple Arbitration, Validate Simultaneous Failover

Also being canceled...