Follow these steps to remove and replace a disk drive:
Slide the bezel release tab to the right to unlatch it from the chassis.
Gently remove the bezel from the appliance to reveal the disk drives.
Locate the disk drive carrier that contains the failed disk drive.
Push the maroon button to release the latch handle.
Carefully pull the latch handle forward.
Pull the handle to slide the disk drive from its slot.
Slide the new drive into the empty slot. When the drive is fully inserted into the slot, push the latch handle in until it clicks.