RawHistoryCollStrategy coding group

This code group assembles the different ways to cut raw history collections.

Lua access code

To access the code of the codings below, append the coding group name and coding name to syslib.model.codes, see an example below.

return syslib.model.codes.RawHistoryCollStrategy.WRAP_EACH_DAY

Codings

Name Code Description
WRAP_EACH_DAY 5 This setting can be used under normal conditions (moderate item number, moderate average historization frequency) to keep history collection number low
WRAP_EACH_HOUR 4 This setting should be used under normal conditions (moderate item number, moderate average historization frequency)
WRAP_EACH_MINUTE 2 Use this setting only in case you run historization for an extreme number of items at very high (subsecond) historization rates
WRAP_EACH_TEN_MINUTES 3 Use this setting only in case you run historization for an extreme number of items at high (one-second) historization rates
WRAP_NEVER 1 Flat raw history collections may grow infinetly. Please use this setting with care.