140
DISK MANAGEMENT
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Notes on the hard disk
Camera images are recorded into the built-in hard disk of
this unit.
There are two hard disks in this unit. In case one of them
malfunctions during recording, it is possible to keep record-
ing with the other hard disk (mirror function).
The internal hard disk of this unit is virtually divided into 3
areas to manage the hard disk.
Normal recording area:
An area into which images are
recorded at times other than an event occurrence such
as manual recording.
Event recording area:
An area into which images are
recorded at an event occurrence.
Copy area:
An area into which copy data is stored.
It is possible to check the available disk space for each
area on "Disk Info" of "Maintenance" on the SETUP MENU.
(Refer to page 135.)
• When connecting an optional extension unit (WJ-
HDE300 series), it is possible to create a pre-recording
area to perform pre-event recording (page 147) for up
to 60 minutes.
Operations for the hard disk drive such as initialization (for-
matting) of the hard disk drive in the unit or the optional
extension unit, or mirroring, etc., can be performed in the
"HDD DISK MENU". (Refer to page 143.)
Note:
It is necessary to create either the normal recording
area or the event record area. If the normal recording
area is not created, manual recording images and
schedule recording images are recorded into the event
recording area. If the event recording area is not creat-
ed, event recording images and emergency recording
images are recorded into the normal recording area.
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How to replace the built-in hard
disk
It is possible to replace the hard disk drive regardless of
whether the power of the unit is on/off.
However, the procedures for replacement are different.
Refer to the operating instructions for the optional extension
unit when replacing the hard disk in the extension unit.
When replacing the hard disk drive after turn-
ing off the power of the unit.
z
Turn off the power of the unit and detach the power
plug from the outlet.
x
Do the following to replace the hard disk drive.
1. Open the connectors cover on the front panel and
remove the fixing screws.
Detach the front panel by sliding it after removing the
screws.
Important:
• Do not detach the cable connecting the unit and the
front panel while the HDD status indicators are still lit or
until 30 seconds have passed since the HDD status
indicators went off.
• Protect the hard disk drives from static electricity.
• Do not stack them, or keep them upright.
• Do not use an electric screwdriver to fix them.
(Tightening torque: Approx. 0.49 N · m (5 k
g
f · cm))
• Avoid rapid changes in the temperature/humidity to
prevent condensation. (Acceptable change: within 15
°C/h (59 °F/h))
Screw
Connectors cover
