Start and stop modules
- Last UpdatedDec 12, 2025
- 2 minute read
Some of the components that make up the AVEVA Historian can be stopped and started individually without affecting data acquisition, storage, and retrieval. These modules include the event subsystem, Historian I/O server, and Historian I/O server (classic).
To start a module
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In the console tree, expand a server group and then expand a server.
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Right-click Management Console, point to All Tasks, and then click Start Module. The Select Modules to Start dialog box appears.
The Server field shows the name of the AVEVA Historian server to which the options apply.
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In the Modules window, click to select the optional modules to start or stop. (Only those modules that are currently stopped appear in the Modules window.)
For more information about the Classic Event subsystem, see Classic event subsystem.
For more information about the Historian I/O server and Historian I/O server (classic), see AVEVA Historian processes.
For more information about system modules related to the client access point, see Data acquisition components.
To select all of the modules, click Select All. To cancel the selection of all of the modules, click Select None.
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Click OK.
To stop a module
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In the console tree, expand a server group and then expand a server.
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Right-click Management Console, point to All Tasks, and then click Stop Module. The Select Modules to Stop dialog box appears.
The Server field shows the name of the AVEVA Historian server to which the options apply.
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In the Modules window, click to select the optional modules to start or stop. (Only those modules that are currently started appear in the Modules list.)
For more information about the Classic Event subsystem, see Classic event subsystem.
For more information about the Historian I/O server and Historian I/O server (classic), see AVEVA Historian processes.
For more information about system modules related to the client access point, see Data acquisition components.
To select all of the modules, click Select All. To cancel the selection of all of the modules, click Select None.
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Click OK.