LG N2R1D - NAS Server User Manual And Instruction Manual page 155

. RAID trouble shooting
∙ Mirroring volumes
Data can be exactly replicated to the Disk through this technique. If one Disk
becomes damaged in the volume, data can be efficiently transferred, saved and
backed up to another configured Disk. The volume's storage capacity is equal to
that of the smallest Disk in the RAID1, as the data is reproduced from Disk to Disk.
The data backup is a priority during RAID1.
The saving of important data is recommended.
A B C
1
A B C
A B C
1
2