English 21Menu Setting ProceduresThis displays hard disk information. In addition, if another hard disk has been added and mirroringrecording by the digital video recorder has been set to “ON”, you can also set the drive to be givenpriority for the reading of data.PLAYBACK DRIVEIf mirroring recording by the digital video recorder hasbeen set to “ON”, you can select the disk drive fromwhich the recorded data is to be read from menu (3333).What is mirroring?Mirroring recording is the term used to refer torecording the same images on two hard diskswhen an extra hard disk has been added.Turning on mirroring is a backup option sothat if the data recorded on one disk becomescorrupted for some reason, the data from theother disk that was recorded correctly can beretrieved instead.1 Select “Disk 1” or “Disk 2” from the menu.• DISK 1: Data will be read from Disk 1.• DISK 2: Data will be read from Disk 2.2 Click [SAVE] to complete the PLAYBACK DRIVEmenu settings.1 Hard disk capacityDisplays the total capacity of the hard disk.If an extra hard disk has been added, the capacities of eachhard disk are shown separately.2 MIRRORINGThis shows the mirroring recording setting for the digital videorecorder.• ON: Mirroring recording is carried out.• OFF: Mirroring recording is not carried out.3 PLAYBACK DRIVEThis displays the number of power failures and period of time that the digital video recorder has beenused for recording.1 POWER FAILUREThis shows the number of power failures, the date and time ofoccurrence, and the date and time of recovery.2 USED TIMEThis shows the period of usage of this unit.3 FIRMWAREThis shows the firmware version.15. HDD SETIf these settings are made after an extra hard diskhas been installed, the hard disks will be in theinitialized condition with all recorded imageserased. Any important recorded images should bestored on a computer.32116. POWER FAILURE/USED TIME• DISK1 USE: Total recording time for Disk 1• DISK2 USE: Total recording time for Disk 2• POWER: Total time the unit has been switched on123