disk storage, then the theory storage speed of hard disk is twice
the one of single block hard disk, the actual capacity equals to
twice the smaller capacity of the one hard drive(between the
two hard disk). The deficiency of RAID 0 is that any piece of
hard disk is failure; the whole RAID on data will not be restored.
Note: It's more suitable for copying HD movie
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SAFE Mode(Mirroring):
Safe mode also is RAID 1 mode in this state, 2 hard drives are
closely mirrored. The actual capacity of portable hard drive
equals to the smaller capacity one, storage speed is same as a
single block of hard disk. The advantage of RAID 1's lies that any
piece of hard disk stored data losing, others can not lose, its
weakness is the capacity loss of hard drive is bigger.
