Thom Denholm
Thom is an embedded software engineer with more than 25 years of experience, combining a strong focus on operating system and file system internals with a knowledge of modern flash devices. He writes whitepaper and is a frequent speaker at conferences such as Embedded World and Flash Memory Summit. In his spare time, he works as a professional baseball umpire and an internet librarian. Though he has lived in and around Seattle all his life, he has never had a cup of coffee.
How to avoid end of life from NAND correctable errors (2020)
Status: Available NowFlash media is fabulous for most use cases, but heavy reads can cause correctable errors. Linux flash file systems actually shorten the life of the media when dealing with these errors. How does this change with multiple bits per cell, including recent QLC NAND? What other sorts of media management can help get the most lifetime out of your flash media based device?
This talk will cover these sorts of problems and impacts in detail, from flash file systems to SSDs and other NAND flash-based media. While we can't speak to what the firmware in your devices are doing, we have an excellent knowledge of what they should be doing, and also detail the sorts of conversations a system designer should have with their flash media vendors.