51
Useful Features Using a PC
When alarm recording is performed repeatedly with Repeat
Recording set to “ALL” or “ALARM LOCK”, data in the hard disk
may become fragmented. Continued use of such data may
cause files to split up and be recorded into free space, thereby
giving rise to fragmentation or decay of data, which
subsequently slows down the speed dramatically during hard
disk searches. This is where the “DEFRAG DATABASE”
feature comes into play in the maintenance of the hard disk.
1. Press the [MENU] button.
• Opens the menus in accordance with the instructions
provided in Changing MENU Settings (page 17) in the
sequence of “MENU” → “DETAIL OPERATION” →
“MAINTENANCE” → “DEFRAG DATABASE”.
2. Select [MANUAL] with [S/T], and then press the [SET]
button.
• The DEFRAG DATABASE confirmation screen will be
displayed.
3. Select [YES] and press the [SET] button.
• The DEFRAG DATABASE function will be executed.
Recording may fail if there is insufficient space on the hard disk.
When there is insufficient hard disk space, create a backup
data and format the disk to create space for the recorded data.
You are also recommended to “FORMAT” (Initialize) the hard
disk on a regular basis to avoid data fragmentation.
1. Press the [MENU] button.
• Opens the menus in accordance with the instructions
provided in Changing MENU Settings (page 17) in the
sequence of “MENU” → “DETAIL OPERATION” →
“MAINTENANCE” → “FORMAT”.
EXTRNL: Indicates external hard disks.
(Only one can be connected.)
2. Select [FORMAT] with [S/T], and then press the [SET]
button.
• The FORMAT confirmation screen will be displayed.
3. Select [YES] and press the [SET] button.
• The FORMAT function will be executed. When the
formatting process has been completed, the “FORMAT
SUCCEEDED” screen will be displayed. Operations will
then automatically return to normal.
• As the hard disk capacity displayed on the screen is
calculated as 1GB = (1024)3 bytes, a lower capacity than
actually exists will be displayed.
• All recorded events will be erased when the formatting
procedure is executed. Make sure that all important events
are backed up accordingly.
DEFRAG DATABASE
DEFRAG DATEBASE
TIMER CONTROL
DATE AND HOUR
MANUAL
OFF
** / **
EXEC
2.
• If the time for automatic execution is reached during
recording, the recording procedure will be aborted and
the database will be defragged. When the defragging
process is complete, recording will be restarted
automatically.
• The defrag procedure should be run when searches
take excessive amounts of time.
• When the date and time of automatic execution arrives
during alarm recording, the recording process will be
ended and the defrag process executed. Alarm
recording will not be restarted when the defrag process
has ended (although it can receive new alarms.)
• The manual defrag process cannot be executed when
in the following operation modes:
• During recording.
• During the playback of recorded images.
• When the timer is ON.
• During DVD export.
CAUTION
Initializing the Hard Disk (“FORMAT”)

Precautions When Initializing the Hard Disk

FORMAT
ID
IDE1
IDE2
EXTRNL
CAP STATUS
149GB
149GB
---GB
NORMAL
NORMAL
DISCONNECT
FORMAT EXEC
2.
The hard disk cannot be initialized when in the following
operation modes:
• During recording.
• During the playback of recorded images.
• When the timer is ON.
• During DVD export.
• When a malfunction occurs with the hard disk.
CAUTION