OnSSI NetDVMS Rev 6.5
Administration
On-Net Surveillance Systems, Inc. | 222 Route 59, Suite 303, Suffern, NY 10901 | T: 845-369-6400 | F: 845-369-8711 | www.onssi.com | [email protected] | page 35
Tip: If you have several cameras, and several local drives are available, performance
can be improved by distributing the databases of individual cameras across the local
drives.
•
In case of database failure, take the following action:Select which action to take if
the database becomes corrupted.
The number of available actions depends on whether archiving has been enabled. You
enable archiving for a camera in the
Archive setup window
, accessed from the
Administrator window
by clicking the Archive Setup... button.
o
Repair, Scan, Delete if fails: Default action. If the database becomes corrupted,
two different repair methods will be attempted: a fast repair and a thorough
repair. If both repair methods fail, the contents of the database will be deleted.
o
Repair, Delete if fails: If the database becomes corrupted, a fast repair will be
attempted. If the fast repair fails, the contents of the database will be deleted.
o
Repair, Archive if fails: Available only if archiving is enabled for the camera. If the
database becomes corrupted, a fast repair will be attempted. If the fast repair
fails, the contents of the database will be archived. This action is recommended if
archiving is enabled for the camera.
o
Delete (no repair): If the database becomes corrupted, the contents of the
database will be deleted.
o
Archive (no repair): Available only if archiving is enabled for the camera. If the
database becomes corrupted, the contents of the database will be archived.
Tip: An archived corrupt database can be repaired by the
Viewer
: Open the
Viewer and attempt to browse the archived recordings from the camera in
question. Browsing will initially fail, but this will make the Viewer start repairing
the corrupt database.
When the contents of the local database for the camera are either deleted or archived,
the database is reset and will be ready for storing new recordings.
Note: No images can be recorded while the database is being repaired. For large
installations, a repair may take several hours, especially if the Repair, Scan, Delete if
fails action involving two different repair methods is selected, and the first repair method
(fast repair) fails.
Note: In case recordings for a camera get bigger than expected, or the available drive space is
suddenly reduced in another way, an advanced database resizing procedure will automatically
take place:
If archives are present on the same drive as the camera's database, the oldest archive for all
cameras archived on that drive will be deleted
If no archives are present on the drive containing the camera's database, the size of all camera
databases on the drive will be reduced by deleting a percentage of their oldest recordings, thus
temporarily limiting the size of all databases
