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The event log viewer database can be stored either with the Axxon PSIM configuration database or without it.

Disk You can calculate the disk space required for to store the event log database storing is counted by viewer database using the following formula:

Required disk space, Gb GB = N (pcs) * K (events/hour) * T (days) * 24 (h/day) * 1.2 (KbKB) / 1024² (KbKB/GbGB)

where N – is the number of objects that generated events.

K – is the average number of events per hour from one object. It is defined determined experimentally from real conditions. For example, to define determine the average number of events per hour for camera it is required a camera, you need to know how many times per hour motion appears in the camera field of view. Estimation from above: one event once per five seconds, on more frequently triggering detection  haven’t got enough time to disarm and events won’t be record . If detectors generate events more frequently, they don't have time to clear the alarm, and events aren't recorded to the database.

T – is the depth of events the event archive in days, ; it is specified at the system configuration stage.

1.2 – is the space required for storing one event in kilobytes.

Example. There are 250 objects, each of them generates one event per 5 five seconds (i.e. that is, 720 events per hour) with the archive depth of 20 days.