Phil Turmel writes: > No, rebuild isn't just writing to the new disk. You have to read other > disks to get the data to write. In raid6, you must read at least n-2 > drives, compute, then write. In raid10, you just read the other drive > (or one of the other drives when copies>2), then write. Yes, but the data is striped across those multiple disks, so reading them in parallel takes no more time. At least unless you have a memory/bus bottleneck rather than a disk bottleneck. so again, you're probably right if you are using blazing fast NVME drives, but not for conventional HDD.
