[SOLVED] Confused by Kingston A400 SSD remaining life %. Can somebody help clarify?

xFazzz

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Oct 27, 2013
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Hi, I'm hoping someone can help clarify if I need to be worried about my SSD's health or not.

I checked HWInfo64 earlier and saw these results: View: https://i.imgur.com/H4cthOS.png


Thinking that this might be an error with HWInfo, I downloaded the Kingston SSD Manager software to try checking the drives health with that, these are the results from that: View: https://i.imgur.com/r39zUmR.png


I am a little unsure how to read the data, or which software to trust. Any help would be much appreciated!
 
Solution
The Normalised values of the SSD Wear Indicator attribute are 4 while the raw value is 96 (= 0x60 in hexadecimal).

I believe this is telling you that the total amount of wear is 4%, and the total life left is 96%.

I say this because the average erase count is only 32 (= 0x20). It would appear that 1 percentage point of wear equates to 8 erase counts. This then suggests that the SSD is rated for 800 P/E cycles.

Assuming a write amplification factor of 1, this would suggest that the TBW spec would be of the order of 220TB.

https://ipv4.google.com/search?q=256+GiB+x+800+in+TB

xFazzz

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Oct 27, 2013
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According to teh device specification, if you look up on kingston website you will find this:
Total Bytes Written (TBW)4120GB: 40TB
240GB: 80TB
480GB: 160TB
960GB: 300TB
1.92TB: 600TB


Yours is 240GB so it can endure 80TB of writtings, you got 7TB right now, 7%, so yeah, it is very healthy.
 
The Normalised values of the SSD Wear Indicator attribute are 4 while the raw value is 96 (= 0x60 in hexadecimal).

I believe this is telling you that the total amount of wear is 4%, and the total life left is 96%.

I say this because the average erase count is only 32 (= 0x20). It would appear that 1 percentage point of wear equates to 8 erase counts. This then suggests that the SSD is rated for 800 P/E cycles.

Assuming a write amplification factor of 1, this would suggest that the TBW spec would be of the order of 220TB.

https://ipv4.google.com/search?q=256+GiB+x+800+in+TB
 
Solution