概念
Types of Data
In Building Operation, there are two types of data that are backed up: Historical and Configuration.
When deciding on the frequency of SmartStruxure server backups, you should take into account the potential cost of recreating any historical or configuration data that can change since the last backup. For example, you can perform an All data backup back up a SmartStruxure server device weekly if multiple operators use their WorkStations frequently. As a precaution, you can perform a Configuration only backup before installing a new application or modifying the current configuration.
The following table lists the types of data that you can back up and the purposes of each.
|
Type of Data |
Contents |
|
Historical |
Includes trend logs and event logs stored on a SmartStruxure server. |
|
Configuration |
Includes configuration data comprised of points, values, alarm objects, trend objects, programs, graphics, and custom object type data. Also includes the configuration properties of variables, such as Unit. Depending on the retain level of the variable, some configuration properties like Value are also included in a backup. 有关更多信息，请参阅 Retain Level . |
Depending on the type of data, the system locks changes to the database while a backup is in progress in different ways. For configuration changes, Building Operation queues up the changes until the backup completes. For historical data changes, Building Operation buffers the data based on the limits of the buffer size.
When you back up a SmartStruxure server specifying either Configuration only or All data, Building Operation includes all the configuration values that are specified for the SmartStruxure server’s objects. If you restore the SmartStruxure server, Building Operation restores these configuration values, which can overwrite any changes made since the last backup.
When you back up a SmartStruxure server specifying either Configuration only or All data, Building Operation includes all the configuration values that are specified for the SmartStruxure server’s objects. If you restore the SmartStruxure server, Building Operation restores these configuration values, which can overwrite any changes made since the last backup. 有关更多信息，请参阅 Retain Level .
Backup
Retain Level
Backup Status