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odinsride

macrumors 65816
Original poster
Apr 11, 2007
1,148
1
I have an OWC SSD that I suspect is not in good shape based on what I see in the S.M.A.R.T. attributes. However, the overall status reports that it's "OK" or "Verified". The individual attributes report several "Fail" statuses, so I don't know what to do about this. Can someone take a look at the screenshots and help me make sense of it?

Thanks!
 

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odinsride

macrumors 65816
Original poster
Apr 11, 2007
1,148
1
Firmware updated but still the same results in SMART attributes. I guess the drive is toast :(
 
Comment

ElectricSheep

macrumors 6502
Feb 18, 2004
498
3
Wilmington, DE
The attributes which are reported as "Failing" have no failure threshold and thus the status indicator really has no meaning. They simply record lifetime statistics of the drive during operation.
 
Comment

odinsride

macrumors 65816
Original poster
Apr 11, 2007
1,148
1
The attributes which are reported as "Failing" have no failure threshold and thus the status indicator really has no meaning. They simply record lifetime statistics of the drive during operation.

I have other drives that have no failure threshold with a status of "OK" on those attributes. While the drive technically still works, I ran a speed test on it and got abysmal numbers (worse than a mechanical drive). I think there is definitely something wrong with this SSD.
 
Comment

ElectricSheep

macrumors 6502
Feb 18, 2004
498
3
Wilmington, DE
There is one thing you can do:

ATA-Secure Erase the drive and see if that restores the read/write performance. You will have to follow the instructions in this post (#3) as you will have to boot into a Linux Live session and use gparted to do it. This is different than the "Secure Erase" option supplied by Disk Utility, and will restore the drive to factory condition.

Sandforce-based drives employ real-time compression and data de-duplication to extend the life of the drive, but the effectiveness of this strategy depends on data being compressible.
 
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