WD Caviar black640GB failing after 2 months?

I recently purchased a WDCB640GB hdd from a local IT shop for a backup drive (have 2 500GB ones in RAID0) . The drive started to slow down drastically , and lagged quite a bit . I had to back up my data , but some files were not readable , so i Reformated the drive ( full format) , and copywed my data back , but it did not improve , so i downloaded “Data Lifeguard Diagnostics” , and i saw the SMART status beeing a : X FAIL ( written in red ) . I could not even read the SMART disk information . So i rebooted , and the same happened . ( Other drives are green/good )

So i am pretty sure this drive is about to fail . Did i do something wrong , and it should work , or RMA immediatly ?

 Extended test says error-08 too many bad sectors detected .

Run the Extended Test with Data Lifeguard Diagnostic on the drive, if it failes the test then the drive might need to be replaced, I found the replacement options through the WD web site and you can review them on the link below.  

http://websupport.wdc.com/warranty/rmainfo.asp?custtype=end&lang=en

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The Extended test failed with error number-08 , Too many bad sectors .

EDIT : alo tried to Write zeroes , adn after an extended test . Same result .

hdd2.jpg

Apparently the Extended Test failed so this drive might need to be replaced. I found a link in WD web site where you can request the replacement online.

http://websupport.wdc.com/warranty/rmainfo.asp?custtype=end&lang=en

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