Future storage technologies and Linux [LWN.net]

Future storage technologies and Linux

Posted Apr 7, 2011 19:18 UTC (Thu) by eds (guest, #69511)
In reply to: Future storage technologies and Linux by foom
Parent article: Future storage technologies and Linux

Can you link to some place with evidence of this? (Drives parsing filesystems to auto-trim blocks)

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Future storage technologies and Linux

Posted Apr 8, 2011 1:30 UTC (Fri) by foom (subscriber, #14868) [Link]

It was from a paper exploring the data forensics ramifications. This one, I think:
http://www.jdfsl.org/subscriptions/JDFSL-V5N3-Bell.pdf

Quick google search also finds:
"Samsung controllers with recent firmware take an entirely different approach. Without any interaction from the OS, the Samsung firmware is able to 'read' the drive data in the background. When the drive has been idle for a period of time, the firmware reads any NTFS volume bitmaps present and automatically frees up flash blocks not allocated by that partition."

http://www.pcper.com/comments.php?nid=7488