Future storage technologies and Linux

Posted Apr 8, 2011 21:28 UTC (Fri) by giraffedata (subscriber, #1954) [Link]

umm, 'normal' hard drives have been transparently relocating data for the last 15 years or so

Hardly ever. If you assume block N is always next to N+1, your performance won't be noticeably different from optimum.

I'm lost in this thread, though. In response to a comment giving a few reasons that it's better for Linux to control a drive than for a controller bundled with the drive to do it, eds writes, "Every SSD in the world does far worse." Far worse than what?

I thought this might be a misplaced comment meant to respond to the issue the article raises of these new disk drives having unpredictable layout. But the unpredictable layout of SSD blocks isn't the same problem: on a disk drive, unlike an SSD, it matters a lot for speed in what physical order you access the blocks.