Is rebuilding Process okey?

    Is rebuilding Process okey?

    I use fantec qb35rfe with raid 5. Suddenly disk number 3 in the unit started blinking and hd error turned on. I replaced disk number 3 and all the lights turned off except from rebuilding led flashing.
    My problem is that only the leds 1,2 and 4 are blue and nothing happens with the led of disk number 3 (it is turned off not blue not purple). Is this right or do I have a problem with the disk I installed. The disk was old but it was in a working condition. When I turn my computer off the unit turns off too. I have connected my computer with Fantec with e-sata. Please help me!
    Hi,

    have you replaced the disk while the device was powered on?

    The most common error is the replacing of faulty disks while the device is powered off. This wouldn't work because the device must be active to recognize the defective HDD and makes it possible to replace it with another HDD.

    Best regards,
    Lars