NETAVIS Observer 4.6 User Manual (October 2015)
Page 114 of 204
Field label
Description
Image database AES encryption
(0=no encryption, 1 or
2=encryption)
This defines whether the image data are encrypted with
AES.
Value 0 switches off encryption (default).
Entering the value 1 or 2 will switch on AES encryption of the
video recording. Value 1 means the system will store the
encryption key on a local server disk.
Value 2 will store the key on a USB device (formatted with
FAT32), which has to be plugged into the server. If the device
is not accessible, then archive access is not possible.
Prior to inserting the USB device, a writable directory "nek"
must be created on the device (this can be done under
Windows, for example). Observer will search for this
directory and store the key file in it. After the USB device is
detected and the key has been written to it the first time, an
event with following text is generated: "IDB encryption
started, USB device can be removed now for creating
backup copy". At this time the USB device can be removed
from the server, and a backup copy of the directory "nek"
can be created. Note that the stick must be inserted again
before any archive query is started.
Warning:
Loss of the encryption key stored on the USB
device will make archive access impossible!
Also, encryption needs much more CPU power than no
encryption (see also
1.3 Observer data security
on page 7).
Length of alarm recording image
database in days
In case continuous recording is run in parallel to an iCAT or
event-triggered recording this option defines the minimum
number of days the iCAT or event-triggered recordings are
stored (regardless of how long the continuous recordings
are stored).
Warning:
If there is not enough space available for all
recordings then even iCAT or event-triggered recordings
may be deleted sooner than configured here. (Please see
7.1.4 Operation of the Observer dynamic storage
management
on page 74 for further information).
Limit for manually protected
recordings in days
Any delete-protected recordings older than this time limit
(number of days) will be deleted automatically.
Name of logout PTZ position
Name of a PTZ position where all PTZ cameras which have
a position configured with that name will be positioned
when a user logs out. If left empty the feature is not
