Wrong TBW value/percentage used

Experiences with hard disks, SSDs, USB devices, hard disk controllers, motherboards and so.
fxnez
Posts: 2
Joined: 2023.06.19. 09:08

Wrong TBW value/percentage used

Post by fxnez »

Hi, I have this SSD
TM8FP6256G0C101
according to the official specs it has 150 TB TBW for the 256GB version
https://www.teamgroupinc.com/en/catalog/act.php?act=2&index_id=162

HD Sentinel 6.00 reports it as being used 1% already after 750GB written. Shouldn't 1% come at around 1.5TB written?
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2023-06-19 09_14_52-Disk_ 2, TEAM TM8FP6256G [TPBF2211040040102546]  -  Hard Disk Sentinel 6.00 PRO.png
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2023-06-19 09_14_23-Disk_ 2, TEAM TM8FP6256G [TPBF2211040040102546]  -  Hard Disk Sentinel 6.00 PRO.png
2023-06-19 09_14_23-Disk_ 2, TEAM TM8FP6256G [TPBF2211040040102546] - Hard Disk Sentinel 6.00 PRO.png (37.86 KiB) Viewed 6146 times
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hdsentinel
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Re: Wrong TBW value/percentage used

Post by hdsentinel »

I can confirm that the "Percentage used" value is calculated by the SSD itself: the firmware of the SSD calculates this value based on the disk utilization/usage. Yes, mostly the amount of data written but other factors can affect the calculation.

This Percentage Used value is NOT calculated/counted by Hard Disk Sentinel: Hard Disk Sentinel "only" detects and reports/displays the value.

So please contact the manufacturer TEAM GROUP about the situation: probably they can explain the math how they calculated, why the 750 GB written causes the 1%.

Please note that generally the TYPE of the data written is also important: if you save many smaller files, it could cause more wear, much faster degradation even if the total amount of written data is less.
fxnez
Posts: 2
Joined: 2023.06.19. 09:08

Re: Wrong TBW value/percentage used

Post by fxnez »

I see, thank you.
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