On-Net Surveillance Systems, Inc.
NetDVMS 6.5f User Manual
Input, Events & Output
69
Viewing Archived Recordings
You view archived recordings in the
Viewer
or
NetGuard-EVS
. This way, you are able to use all of
Viewer's or NetGuard-EVS's advanced features (video browsing, smart search, evidence export, etc.)
for archived recordings as well.
Archives Stored Locally or on Network Drives
For archived recordings stored locally or on network drives you simply use the Viewer's or
NetGuard-EVS's browsing features, for example the timeline browser or the playback controls, for
finding and viewing the required recordings; just like you would with recordings stored in a
camera's regular database.
Exported Archives
For exported archives, e.g. archives stored on a CD, you must use the Viewer: Click the browse
button in the Viewer's Database Information control panel to browse for the archive you want to
view. Once you have specified the required archive this way, you can use all of the Viewer's
browsing features for navigating the recordings in the archive.
Virus Scanning and Archiving
If allowed in your organization, disable any virus scanning of camera databases and archiving
locations. For more information see
Virus Scanning Information
.
New Database if Archiving Fails
Under extremely rare circumstances archiving may fail. For example, a database may be full and
ready for archiving, but the operating system may lock content in the database if a content file is
open. This would prevent archiving. In practice, this situation would only occur if somebody attempted
to view a database file (e.g. a .pic file) directly from the database folder at the time of the archiving
(viewing the file directly would not work since database content cannot be viewed as individual files,
only through a NetGuard-EVS or Viewer).
In such situations, the database will be put aside for archiving at a later point in time. While the
database is put aside, a special temporary database is created for storage of new recordings. This
way, no new recordings will be lost even though the original database is full (provided enough disk
space is available for storing the special temporary database).
NetDVMS will wait for the next archiving occasion (either scheduled or because the special temporary
database also becomes full). It will then archive the content of the special temporary database, and
thus free up space in it. NetDVMS will then continue to store new recordings in the special temporary
database. This will apply until the Recording Server service is
restarted
. Once the service has been
restarted, the content of the original database will be archived, and new recordings will again be
stored in the original database. The special temporary database will also be archived, and will then
cease to exist.
Can I view recordings from the special temporary database? Normally, the content of
databases can be viewed through a NetGuard-EVS or Viewer, regardless whether the databases have
been archived or not. However, the content of the special temporary database cannot be viewed
through a NetGuard-EVS until the content has been archived. On the surveillance server itself, you will
be able to view the content of the special temporary database through the Viewer, even if the special
temporary database has not been archived yet.
Since the special temporary database will be used for storing new recordings until the Recording
Server service is restarted—even though the original database may no longer be locked—you may in
