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== Example: embedded Linux system equipped with SanDisk SDINBDG4-8G-XI1 eMMC and <code>ext4</code> file system ==

As stated previously, eMMC's and SD cards are block device. As such, they are operated in tandem with file systems that have been developed for hard disks and solid-state drives. [https://en.wikipedia.org/wiki/Ext4 <code>ext4</code>] is one of them and one of the most popular in the Linux world. On the one hand, eMMC's and SD cards are easier to use by the systems integrators because they hide most of the complexity regarding the management of the underlying NAND memory. On the other hand, their architecture could make it difficult to retrieve data regarding the actual usage of the memory at low level. There are several techniques, however, to address this issue when working with an embedded Linux platform:

* Logging the accesses