Vista SmartDisc 4/10 VLS-04DR-Series, Installation Instructions Manual

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5 Description of Site Archive features
36 Vista SmartDisc
The illustration shows identical partitioning (factory setting) for each of the
10 camera tracks of a SmartDisc 10 hard disk. The required storage capacity
is based on average picture size, recording mode, recording speed, and
recording duration. Set the partition size using the thumb. No images are
recorded on a camera track when the storage capacity is set to 0%.
FIFO SmartDisc uses FIFO (First In First Out) for recording. The oldest images or
events will be overwritten with new recordings after a certain period of time.
Hard disk partitioning into camera tracks prevents recorded images from
being overwritten by data from other cameras.
Record preview
images
When accessing the image archiving device remotely over a low bandwidth
connection, low-resolution preview pictures (256 x 128 pixels) can be stored
in the archive. These preview pictures can be used to view the recorded
pictures more quickly during remote access. When preview pictures are saved
during recording, recording speed is slowed down by about 20%. Recording
duration is reduced by approximately 10%, as additional storage space is
required for preview images.
Overwrite
protection
Activating overwrite protection ensures that existing recordings are never
deleted automatically. Individual camera tracks must be released before
overwrite. An individual storage warning threshold can be defined for each
track. Reaching the threshold warning limit (to be set in percentiles) triggers
the SmartDisc error LED to illuminate and a log file entry to be written. The
threshold warning limit can be reported by relay as well, depending on device
configuration. For remote evaluation with SmartControl or SmartControl
PRO software a message is displayed that only dedicated image export or
switching removable hard disks will ensure permanent image storage.
The archive is reformatted when the track storage capacity is changed. All
images recorded up to this point will be irretrievably deleted.