The required time for synchronization copying invoked by hot spare depends on the performance of the CPU or disk. You can estimate the indication of the required time by the following formula:
Total volume size (GB) x 0.5 (minute) + (Total volume size (Block) / 128) x spare_copy_delay (milliseconds)
You can check the value of spare_copy_delay (delay time for synchronization copying invoked by hot spare) with the sdxparam -G.
