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Event partition
An event partition can be configured to protect events for longer than using just
the normal recording partition. When an event partition is configured, all events
will be saved to this area. The events are overwritten on a first in first out basis
when the partition is full.
To work out the required event partition size, use the following equation:
Where;
Days = Number of days required before the events are overwritten.
Image size (KB) = The recorded image size in kilobytes.
% Events = The percentage of recordings which are events.
Event PPS = The record rate of event recording (PPS).
For example, If you want to keep events for 5 days before they are overwritten,
alarms are triggered for 25% of the time, image size is 18KB, and the Event PPS
is 6 pictures per second the equation would be:
Caution:
Specifying an event partition will reduce the disk space for normal
recording, reducing the recording time on disk.
Event partition (GB) = 5 x 18 x 25 x 6 = 12GB
1111
Event partition (GB) = Days x Image size (KB) x % Events x Event PPS
1111
Image Storage
It is possible to select which drive(s) to record images to, for example, if you have a
RAID or disk array connected to the BX2 you can elect to record images to
the external storage only, giving greater image security.
Selecting Edit will bring up a pop-up menu with the following options:
The above example has an external RAID’s or disk array (drive L) connected to a
BX2 which will be recording images, the event log will be recorded to the C drive.
Timed expiry
Images recorded onto disk can be programmed to expire after a user-defined
number of days and hours. This option is useful if you are required to adhere to
legislation on maximum recording time, for example, 31 days.
Warning:
Once the timed expiry has been set, all images older than the selected
time will be lost.
C D E F L
Image Storage
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Event Log
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Summary of Contents for BX2
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