Notes regarding hot backup pairs
- Last UpdatedJul 19, 2024
- 1 minute read
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You can use a hot backup only for InTouch 7.11 and later clients.
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If the Distributed Alarm Display object queries a hot backup pair and then queries the primary provider again separately, the Distributed Alarm Display object shows duplicate records.
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Do not configure a provider as a primary or secondary of more than one hot backup pair.
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If a record at the primary provider is acknowledged and the secondary provider (which was down when the acknowledgment took place) starts up at a later time, the time stamp of the acknowledged record is identical with the record in the primary provider.
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The alarm consumer querying a hot backup pair shows the individual node name as the provider.
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You can choose any combination of design-time and run-time alarm record fields for mapping. However, be sure that the mappings do not result in multiple references.
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When mapping the Value and Limit key fields, the values are rounded off to the fourth decimal place and then mapped.
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An alarm record that does not have the specific combination of design-time and run-time mapping uses the default runtime mapping.