What does raid 0 speed up?
RAID 0 does not speed up recovery (RAID 1 does). In fact it can’t make data recovery worse because during a crash, all drives in the array may lose their data when only 1 drive fails. It speeds write and read perofrmance on the drives in the array. Say you have 2 drives in a RAID 0 array, when the OS writes to the HDD, the raid controller will split the amount of data to be written in half and then write each half to the appropriate drive. It also virtually mounts and merges the two physical drives into one visible HDD volume visible to the OS, so instead of two 400GB internal drives appearing in the OS, you’ll see 1 800GB drive. The speed is theoretically doubled (but in real practice it’s not but close). The downside is if one drive fails, typically all data in the array is lost. RAID 0 – Great Performance RAID 1 – Primary drive is Mirrored to secondary drive by the RAID controller. (Makes restoring from a backup easy, but you only get 1/2 the amount of storage you purchase) RAID 5 –
