https://youtu.be/aPd8MaCyw5E ("ShmooCon 2014: You Don' Have The Evidence - Forensic Imaging Tools") was quite an eye-opening talk about common tools, like the article-mentioned `dd` (and its cousin `ddrescue`) and how they deal with I/O errors.
To be clear, I do not believe that the tools are at fault - rather, the SATA/SAS/IDE controllers have a different design goal, and software tools can only do so much.
Tools like DeepSpar (HW+SW), PC-3000 (also HW+SW) allow for a scary level of nitty-gritty access to HW, including flashing SSD/HDD controller FW in case in went pear-shaped), but for data recovery - be it in a forensic context, or in a context of retrieving important irreplaceable data, I have always had a nerd-lust for those tools. Used them at a previous job, but can't ever justify the price for personal and very infrequent use. :)
To be clear, I do not believe that the tools are at fault - rather, the SATA/SAS/IDE controllers have a different design goal, and software tools can only do so much.
Tools like DeepSpar (HW+SW), PC-3000 (also HW+SW) allow for a scary level of nitty-gritty access to HW, including flashing SSD/HDD controller FW in case in went pear-shaped), but for data recovery - be it in a forensic context, or in a context of retrieving important irreplaceable data, I have always had a nerd-lust for those tools. Used them at a previous job, but can't ever justify the price for personal and very infrequent use. :)