interpreting crystaldiskinfo percentage lifetime used

This value is related to attribute 5 (Reallocated Sector Count) and will vary based on SSD density. This attribute represents the number of reserved blocks that have been used as a result of a read, program or erase failure. ID #179 Used Reserved Block Count (total) The raw value of this attribute shows the total count of P/E Cycles. This value is directly related to the lifetime of the SSD. This attribute represents the number of media program and erase operations (the number of times a block has been erased).

The Windows Disk Check looks for corrupted sectors and corrupted files and corrects them as best as it can. It just lets you view any errors that the hard drive itself has reported in its SMART data. 1st SSD from Samsung shows 0xB3, while it should have been 0xB1, or a weighted sum of the two. Crystal Disk is just a program that displays SMART info reported by the hard drive.

The health status percentage for SSD is intended to show the remaining life while in implementation it is just the calibrated percentage of a reference smart attribute chosen by CrystalDiskInfo (see official manual) which is specific to the SSD brand.īoth 2nd and 3rd SSD from Crucial show percentage of 0xAD attribute.

Interpreting crystaldiskinfo percentage lifetime used