SSD and Trim

Recovering Evidence from SSD Drives in 2014: Understanding TRIM, Garbage Collection and Exclusions - Forensic Focus

https://dfir.ru/2020/06/12/trim-and-unallocated-space/

Thanks for the links! I had read the first one but the second one was definitely new to me.

Posted by: @minime2k9

Thanks for the links! I had read the first one but the second one was definitely new to me.

Not strictly answering your original question but I found this page helpful:

Garbage Collection and TRIM in SSDs Explained - An SSD Primer | The SSD Review

This being with respect to the garbage collection aspect particularly (and written by someone who works for a a controller manufacturer, LSI, judging by the comments).

MKF_608 SSD Garbage collection Tech Brief.indd (kingston.com)

Garbage Collection – the silent enemy of data recovery | Data Recovery Ireland

I only provide these with respect to the point that @thefuf makes on this old thread: Hash debate – General Discussion – Forensic Focus Forums in that future hash values of SSDs may well not match (since there seem to be a few articles out there putting everything down to TRIM - when, in fact, garbage collection can occur regardless of TRIM).

@rich2005 Thanks Rich, very useful!