This device does not support hard drive hot swap;
Do not remove your hard drive while it is being accessed;
Before you turn off your device or disconnect it from your computer, be sure to remove it and eject it safely. Otherwise, there is a risk of data loss;
The device does not support RAID expansion and migration. If you need to modify the RAID configuration, delete the RAID and re-create it;
Once you have created the array, the spare hard drives will be treated as hot spares. Do not store data in the hot spare disk!