Matthew,

I am still confused. If the wear leveling count counts back from 100, one drive has a raw value of 3 and the other one has a raw value of 22.

ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
177 Wear_Leveling_Count     0x0013   098   098   000    Pre-fail  Always       -       22

177 Wear_Leveling_Count     0x0013   098   098   000    Pre-fail  Always       -       22

However, the VALUE column has a value of 98. Not sure of the units for either column...

Mark

On Sun, Jan 29, 2017 at 9:46 AM, Matthew Crews <mattcrews@mattcrews.com> wrote:
My understanding is that wear leveling count, and other associated values, start at 100 and count down to 0.

I think you are fine. That said, I would always try to limit the number of write cycles to an SSD as much as possible to maximize life. That said you could probably write a petabyte to a typical SSD before that becomes an issue.

I think your SSDs are probably fine right now. Make sure you perform routine backups, of course.


On Sun, Jan 29, 2017, 09:22 Mark Phillips <mark@phillipsmarketing.biz> wrote:
I ran GSmartControl on my two SSDs (Ubuntu 14.04 laptop), and I see a lot of pre-fail indicators in the reports (attached). Does this mean I am approaching the drives end of life and I need to replace them?

I have also read that each SSD manufacturer codes the SMART attributes differently (https://askubuntu.com/questions/325283/how-do-i-check-the-health-of-a-ssd). Not sure if this is true today, since these posts are several years old.

I looked at this "dictionary of terms" for Samsung drives (http://www.samsung.com/global/business/semiconductor/minisite/SSD/M2M/download/07_Communicating_With_Your_SSD.pdf). I am confused as to why the values in my reports are considered "pre-fail" or "old age" when many of them are zero.

Can you interpret these reports for me, or point me to some documentation that will help me understand what they are telling me?

Thanks!

Mark
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