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I have a pair of 150GB WD Velociraptors that have failed SMART status.

The only fail they have is the Raw Read Error Rate, which is as follows.

.........Status:....Value:....Worst:....Threshold:....Raw Value:....Predicted TEC Date:

Drive 1: FAIL.......44........42........51............1485216.......N/A

Drive 2: FAIL.......24.......19.........51............1883052.......N/A

I'm not very familiar with SMART. I assume this is a bad thing, and intend to replace the drives, but I do see a few people in forums saying the Raw Read Error Rate is BS and should be basically ignored. Can anyone who is more familiar with SMART please give me a more informed opinion?

Also, will the fact that they're mirrored make any difference? They don't have the same values, so I assume each is failing in it's own way, but will their mirrored status affect their SMART values in any way?

Thanks!

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The mirroring status will not affect the smart values. SMART is maintained by the drive, internally. Any mirroring is done higher up the stack. –  Dan Pritts Feb 13 at 19:24
    
@Dan Pritts - Thanks! –  Eli Feb 13 at 19:35
    
regarding the smart results themselves, I can't comment authoritatively but those numbers look pretty bad. At the very least, make sure your backups are current. –  Dan Pritts Feb 13 at 19:42
    
@DanPritts - I just ended up replacing them. –  Eli Feb 19 at 8:30

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