Each and every of these alias addresses might have their own UCB. Given that there are actually now four UCBs to a single gadget, 4 concurrent I/Os are feasible. Writes to the identical extent, a place on the disk assigned to 1 contiguous region of a file, remain serialized, but https://cnc-machine-price95924.blogkoo.com/the-5-second-trick-for-ucb-150-35805340