Avastu Blog: Sustainable Global Clouds

This battleground is getting hotter and hotter. Storage vendor SanDisk unveils its secret juice of ExtremeFFS. El Reg reporting: The flash is multi-threaded, incorporating a non-blocking architecture, so that the 4 to 10 channels from the controller to the NAND chips can be doing different things simultaneously. They can be used for reading, writing or garbage collection. Think of garbage collection as being akin to checking the bookshelf and removing unwanted books thus creating empty space. Or think of the Wallace and Grommit cartoon where new railway track is continuously being laid down in front of a speeding locomotive. That's what the garbage collection does; create fresh track for the speeding (writing) locomotive by pulling up used track from behind the train. So there are always, or should always be, empty pages for small random writes to be written into quickly without having to do an erase before the write. That's been done already in the background. Without this...