You will need to perform a RAID rebuild if one of your drive modules becomes critical or defective. You will need to get that drive replaced under warranty. To get an RMA for that drive, please refer to the link below.
To perform a rebuild on your G-SPEED Studio R that was configured either RAID 1, 1E, 10 or 5, please refer to the steps below:
Insert the new drive into the slot where you removed the defective drive module.
Click on Physical Drive on the top and wait for the G-SPEED Studio software to detect the newly inserted drive module. Take note of the information under Configuration for the inserted drive. Keep in mind that you may need to click on Physical Drive on the top to refresh the page.
Once detected, click on Disk Array, then click on Rebuild.
Make sure that under Source Physical Drive, it has the information you took note under Configuration for the inserted drive. Once verified, click on Confirm. This will begin the rebuild process.