Am 30.05.19 um 17:58 schrieb keld@xxxxxxxxxx: > so you will not get performance gains if you read one file sequentially in raid10,near > nor md raid1, reading 2 different files concurrently theoretcally should give the same > speed in md raid1 an mdraid10,near - but I think raid10,near only reads from one device. > so it is a driver issue. but why? you have two simple mirrors, read from both disks, one half from mirror1 and the second from mirror2