73Step 1Click the [Execute >] button on the "Change the oper-ation mode of HDD" section.The "Change the operation mode of HDD" win-→→dow will be displayed.Step 2Step 2Select the desired operation mode of HDD, and thenclick the [Start] button.Important:When the operational mode of HDD is changed•(except the case that the operational mode ischanged from the mirroring mode to the singlemode), all data on the HDDs will be erased.The capacity of the HDD in the mirroring mode will•become almost half if compared with the singlemode.When the operational mode of HDD is changed•from the mirroring mode to the single mode, thestatus of the HDD will turn to "Playback-only".When "Operation mode of HDD" is changed, the•recorder will be automatically rebooted.About the removal process and the link process of hard diskdrivesWhen replacing hard disk drives, it is necessary to perform the removal process/ the link process.Be sure to consult the dealer for the removal, installation, and the related process of hard disk drives.Important:When the link process is performed, the data will be erased.•About the change of the HDD operational modeAbout the HDD operational modeSingle mode: Images and audio from the cameras will be recorded on the HDD of this product inorder.Mirroring mode: The same images and audio from the cameras will be recorded on the 2 HDDs of thisproduct. When one of the 2 HDDs is replaced with a new one, it is possible to copydata on the other HDD to the replaced HDD. The HDDs of the extension unit are notavailable for this mode.RAID5 mode: Even if one of the HDDs becomes faulty, recorded images can be recovered using theother remaining HDDs in this mode. The HDDs of this product are not available. 3 ormore HDDs are required in the extension unit.RAID6 mode: Even if 2 of the HDDs become faulty, recorded images can be recovered using theother remaining HDDs in this mode. The HDDs of this product are not available. 4 ormore HDDs are required in the extension unit.Change the operation mode of HDD [Change the operation mode of HDD]