Panasonic Digital Disk Recorders Wj Hd309a Operating Instructions

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2. Remove the cable from the front panel.
3. Remove the screws fixing the mounting unit, and then
pull the hard disk drive mounting angle toward you.
Only the upper and lower holes on both sides will be
used when fixing by screws even though there are 3
holes each on both sides.
4. Remove the four screws fixing the upper hard disk
drive.
When removing, hold the hard disk drive securely to
prevent it from falling.
Then, detach the flat cable from the hard disk drive and
detach the hard disk drive from...

142
cAfter replacing the hard disk drive, insert the power
plug into the outlet and turn on the power of the unit.
→The HDD DISK MENU will be displayed automati-
cally after the restart.
When replacing the hard disk drive without
turning off the power of the unit.
zClose the SETUP MENU after selecting ON for HDD
Safety Mode of Disk Info on the Maintenance menu.
→The HDD SAFETY MODE window will be displayed.
xThe procedures are different between the replacement
of the hard disk of the unit and the...

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160GB:Indicates the hard disk capacity (disk existed when
last started up)
160GB M:Indicates the hard disk capacity (mirrored disk
existed when last started up)
ADD (160GB):Indicates that this hard disk is newly mount-
ed at this startup, but that it was not mounted last time.
Those parenthesized numbers indicate the capacity of
the hard disk.
ADD (ERROR):Indicates that this hard disk is newly
mounted at this startup, but that it was not mounted last
time. Then, an error is detected on the hard...

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Summary of the RAID 5 function (Redundant
Arrays for Independent Disks, independent
data disks with distributed parity blocks)
It is possible to use the RAID 5 function with an optional
extension unit.
RAID level 5 regards 3 or more drives as one drive, and it is
possible to read data by attaching error correction data
even though one of the drives is broken automatically. (It is
impossible to recover data if two drives are simultaneously
damaged or the second drive fails during the data recovery...

145
Formatting (Initialization) the
Hard Disk
It is necessary to initialize the hard disk in the following
cases.
•When replacing the hard disk of this unit
•When operating the unit for the first time after connect-
ing the optional extension unit to this unit
Important:
When the hard disk is formatted (initialized), all of the
recorded images will be deleted.
Formatting (initialization) all hard
disks (unit)
All hard disks including the built-in hard disks and the hard
disks in the extension units...

146
,Press the SET button after setting.
[Screenshot 5]
The confirmation dialog window will be displayed.
.Move the cursor to EXECUTE using the arrows button
(A B) and press the SET button.
→Formatting will start and the format result dialog
window will be displayed. The TOP MENU of the
HDD DISK MENU will be displayed automatically
after displaying the format result dialog window.
 Formatting (initialization) the
selected hard disk (unit)
Do the following to format the selected hard disk (the
selected...

147
[Screenshot 4]
The DISK SELECT menu will be displayed.
When using the RAID 5 function, the UNIT SELECTION
menu will be displayed.

mMove the cursor to a desired hard disk (unit) to be for-
matted (initialized) using the arrows button (CDA
B), and press the SET button.
[Screenshot 5]
THE SETTING METHOD menu will be displayed.
,Select a setting method for each recording area from
the following using the arrows button (A B) and press
the SET button.
Auto Setup:Assigns the same proportion for each...

148
[Screenshot 7]
The PRE RECORDING AREAS menu will be displayed.
⁄0Select the camera channel for pre-event recording
using the arrows button (CDAB) and assign the
disk space to the selected pre-recording area by rotat-
ing the jog dial.
Repeat this operation to assign disk space to two or
more camera channels.
Press the SET button after setting.
→The confirmation dialog window will be displayed.
(→step 13)
Important:
It is impossible to select the camera channel to which
the pre-recording area on...

149
Mirroring is the function that records camera images onto
two hard disks simultaneously. In case one hard disk has a
problem, image data will be stored on the other hard disk.
The credibility of the disk can be enhanced.
It is recommended to activate the mirroring function for the
first use of this unit.
When the mirroring function is activated with remaining
recorded images in the hard disk, those recorded images
in the hard disk will be deleted.
Important:
•The mirroring function can be configured...

150
nSelect a recording area using the arrows button  (CD
AB), and assign the disk space to the selected
recording area by rotating the jog dial.
Repeat this operation to assign disk space to two or
more recording areas.
mPress the SET button after setting.
[Screenshot 5]
The confirmation dialog window will be displayed.
,Move the cursor to EXECUTE using the arrows button
(A B) and press the SET button.
→Mirroring will start and the TOP MENU of the HDD
DISK MENU will be displayed.
 Cancel mirroring...