Hard Disk Monitoring

The Linux version of HDSentinel is reporting 99% based on attribute 169:

No. Attribute Thre.. Value Worst Data Status Flags
169 Remain Life Percentage 50 100 100 000000000063 OK Self Preserving, Event Count, Statistical

It seems that from the "Value" parameter that the disk health is actually 100%. We only want to use disks with 100% health because of issues observed with disks with health less than that.

Would it be correct for me in a case like this to report that the disk health is indeed 100% even though this Linux Edition of HDSentinel is reporting the health as 99% because after all the Value is 100 corresponding to 100%? Or why not?

Sorry, I wonder why you posted in the "bug reports" as there is absolutely no bug here, but exactly the opposite: things work exactly as should, as expected: the purpose is exactly to detect/reveal the real status / Health. I moved the topic to the proper area.

Please note that the Value = 100 in ALL CASES for this drive, even on a such failing drive. This is completely mis-leading: this is the purpose of Hard Disk Sentinel exactly to properly understand, interpret the results (so there is no need to manually check attributes as this can be confusing).


The Health = 99% is completely normal and expected in this situation, as the DATA field (not the Value) suggests the actual Remain Life Percentage for this model.
As you can see, it is 0063 (hex) which is 99 decimal. This number confirms that the actual health of the memory cells is 99% (as calculated by the SSD based on the usage/writes).

It is completely normal and expected that SSDs have slowly but surely decreasing Health % value based on wearouts.
This is not a bug, not a limitation but normal operation: mentioned many-many times, eg.

https://www.hdsentinel.com/kb/category/16/solid-state-drives-ssds/why-my-ssd-shows-98-health-if-no-problems-reported.html
https://www.hdsentinel.com/ssd_case_health_decrease_wearout.php

So if you prefer to use only 100% SSDs - then you'd need to replace them very frequently (eg. weekly) as usually minimal writes can cause that the Health changes to 99%. This is not evil - as this way you'll know when it will be time to replace.


> Would it be correct for me in a case like this to report that the disk health is indeed 100%

No, I'm afraid not. The Value = 100 is always true - even when the SSD reaches the end of its lifetime and fail....