Does anyone know how to read this?
From the SanDisk PDF where I found the information:
Device Health is similar to SMART features of modern hard disks, it provides only vital NAND
flash program/erase cycles information in percentage of useful flash life span.
The host can query Device Health information utilizing standard MMC command, to get the
extended CSD structure:
DEVICE_LIFE_TIME_EST_TYP_A, The host may use it to query SLC device health
DEVICE_LIFE_TIME_EST_TYP_B, The host may use it to query MLC device health
The device health feature will provide a % of the wear of the device in 10% fragments.