I recently bought an SSD, and installed it in the past few days.
Scanning the disk with Hard Disk Sentinel,i encountered the section called "Wear lvl". It says Threshold 0, Value 100, Worst 100, but in Data, the programs shows: 00000000003E.
This self-monitoring attribute generally designed to show the wear of memory cells.
As you may know, the memory cells in flash-based solid state devices experience wear during write operations and each memory cells tolerate only
a limited number of overwrite passes.
The "wear-leveling" feature of the SSDs tries to hide/minimise this effect but generally it is not eliminated.
Many SSDs report the generic health of the memory cells (indicating the amount of wear) in some ways: Hard Disk Sentinel reads these
values and if there are no (other) problems found, Hard Disk Sentinel uses this generic health value as indicator of the SSD health.
This is calculated by the SSD itself based on the usage (power on time, amount of writes, erases, possible problems etc.)
As I do not see the images, I'm not sure about the current situation, but depending on the model, usually the Value field reflects the current health level in percent (100 now). As the Data field is increasing this percent value (and thus the displayed health) will likely decrease. By inspecting the graph, you may see how it changes with time - and especially when the Value is changing, you can estimate about possible lifetime (based on similar use).
If you use Report menu -> Send test report to developer option, I can check the complete status of the SSD.
hdsentinel wrote:This self-monitoring attribute generally designed to show the wear of memory cells.
As you may know, the memory cells in flash-based solid state devices experience wear during write operations and each memory cells tolerate only
a limited number of overwrite passes.
The "wear-leveling" feature of the SSDs tries to hide/minimise this effect but generally it is not eliminated.
Many SSDs report the generic health of the memory cells (indicating the amount of wear) in some ways: Hard Disk Sentinel reads these
values and if there are no (other) problems found, Hard Disk Sentinel uses this generic health value as indicator of the SSD health.
This is calculated by the SSD itself based on the usage (power on time, amount of writes, erases, possible problems etc.)
As I do not see the images, I'm not sure about the current situation, but depending on the model, usually the Value field reflects the current health level in percent (100 now). As the Data field is increasing this percent value (and thus the displayed health) will likely decrease. By inspecting the graph, you may see how it changes with time - and especially when the Value is changing, you can estimate about possible lifetime (based on similar use).
If you use Report menu -> Send test report to developer option, I can check the complete status of the SSD.
Hi:
Thank you so much, your information gave me the chance to understand a little more of the SSD's functioning.
May i ask, why does this wear appear? Is normal? is it user's fault? or maybe the brand's?
The wear always appear when any data written to the SSD.
The installation and normal use of your computer, saving any files/documents or just the temporary data saved by your web browser - all cause writes and thus wear.
It is completely normal, not fault of the user - and it affects all SSDs on the market.
Sectors on hard disks can be overwritten as many times as you want. This is not true for the SSDs: there is a limit about how many times each sector can be programmed/erased. After that, the device can still work - but not able to "remember" stored data correctly.
This is why SSDs have such and similar attributes (which you can check on the S.M.A.R.T. page in Hard Disk Sentinel) which measures wear, amount of data written (which is displayed on the Overview page in Hard Disk Sentinel too).
Based on these, it calculates about the life expectancy of the SSD and some attributes may reflect this or similar.
This is used in showing health in the software - and until it is very high (100% in this case) then you can be sure that everything is perfect, there is no real wear (it does not yet reach even one percent of the total lifetime of the device).
If you prefer to extend the life of your SSD, you may consider to minimise amount of data written on it.
There are some tips on the net, for example to disable swapfile (or at least set it to fixed size) and there are 100's of other tweaks to reduce the amount of data written to the devices. Personally I do not really feel it is required to do lots of such tricks as disabling all Windows components may be not a good idea. Generally SSDs should tolerate normal use - with normal operation.
