14■ Inside the front coverq [USE] buttonUse this button when adding/replacing the HDD units, orwhen changing the operational mode.Installing/removing an HDD unit: Hold down the buttonfor 2 seconds or more until the buzzer sounds. Whenthe buzzer sounds, the recorder is ready for installa-tion/remove of the HDD units using the buttons andthe LCD on the front panel.Changing the operational mode: Select the operationalmode by determining the [RAID] switch position, andthen turn on the power of the recorder by pressing the[POWER] switch while holding down the [USE] buttonuntil the buzzer sounds. The recorder will start up inthe selected operational mode.w HDD unitsOnly the hard disk drive encased in the dedicated harddisk drive canister (HDD units) can be installed in therecorder.It is possible to add/replace the HDD unit by operating thebuttons and the LCD on the front panel. Refer to page 46for further information. Contact your dealer about purchas-ing/replacing hard disk drives.e HDD status indicator (STS)Indicates the operational status of the respective hard diskdrive.Lights green: Indicates that the power of the respectivehard disk drive (formatted) is on.Blinks green: Indicates that the respective hard disk driveis for playback use only.(Recording is unavailable using the respective harddisk drive.)Blinks orange: Indicates that the respective hard disk driveis currently being formatted.Lights red: Indicates that formatting of the respective harddisk drive has failed.Off: Indicates that the power of the respective hard diskdrive is off, or that the hard disk drive is not connect-ed/recognized.r HDD access/failure indicator (A/F)Indicates the status (access/failure) of the respective harddisk drive.When an HDD failure (error) occurs during operation in theRAID 5/RAID 6 mode, the indicator will light/blink red.Blinks green: Indicates that the respective hard disk driveis being accessed.Off: Indicates that the respective hard disk drive is notbeing accessed.Lights red: Indicates that the respective hard disk drive isfaulty (which can be recovered by replacing the harddisk drive)In the RAID 5 mode, it indicates that the hard diskdrive is the first faulty drive.In the RAID 6 mode, it indicates that the hard diskdrives are the first and second faulty drive.Blinks red: Indicates that the respective hard disk drive isfaulty (which cannot be recovered even by replacingthe hard disk drive)In the RAID 5 mode, it indicates that the hard diskdrive is the second faulty drive.In the RAID 6 mode, it indicates that the hard diskdrive is the third faulty drive.Lights red and orange alternately: Indicates that therespective hard disk drive is currently being recoveredin the RAID 5/RAID 6 mode.(It may appear that the indicator lights orange whenrecovery is being processed at high speed.)q w e r ty u