Bought this internal HDD for my win7 desktop @ Amazon.in to use as member disc in RAID1 Mirror. but failed repeatedly.

CHKDSK shows no error but takes longtime complete. CHKDSK/r to mark corrupt sectors went thro’ (took 3 hours). Tried win7 format/ partion/read write no problem but fails as RAID disc Finaly Drive shows error when done ‘quick test’ using WD DLGDIAG disc diagnostic software as below: I dont know what is the real problem,

When checked in WD site, it says Under warranty till Dec 2015, but does not register this online for RMA.  any solutions will be appreciated…

Model Number: WDC WD5000AAKX-00ERMA0
Unit Serial Number:  
Firmware Number: 15.01H15
Capacity: 500.11 GB
Test Result: FAIL
Test Error Code: 06-Quick Test on drive 3 did not complete! Status code = 07 (Failed read test element), Failure Checkpoint = 97 (Unknown Test) SMART self-test did not complete on drive 3!
Test Time: 10:21:30, April 17, 2014

Check if the link below helps.