Enable or disable object model data storage
The object model data storage feature stores object model data reported by devices. By default, time series storage is enabled, and object model data is automatically written to the time series storage space. You can manually disable time series data storage for some or all object models of a specific product.
Limits
The current instance must be a medium or premium enterprise edition instance with the required time series data storage IOPS and time series data storage space purchased. For more information, see Purchase an enterprise edition instance.
Scenarios
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Device data can be retrieved by using APIs. If object model data storage is disabled, these queries are unavailable.
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Custom topic data
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Query time series data: QueryDevicesHotStorageData.
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Query snapshot data: QueryDevicesHotStorageDataStatus.
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Object model data
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All property snapshots of devices or IoT twin nodes: QueryDevicePropertyStatus.
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Original property snapshots reported by devices (verified and unverified by the object model): QueryDeviceOriginalPropertyStatus.
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Original property records reported by devices (verified and unverified by the object model): QueryDeviceOriginalPropertyData.
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Original event records reported by devices (verified and unverified by the object model): QueryDeviceOriginalEventData.
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Original service invocation records from devices (verified and unverified by the object model): QueryDeviceOriginalServiceData.
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To store device data long-term, reduce costs, or perform further processing such as data analysis or data API integration, consider enabling device data backup. After product data backup is enabled, the corresponding product's Offline Storage automatically generates a Time Series/snapshot Table, which includes the Product Property Time Series Table, Product Property Snapshot Table, and Product Event Table.
Prerequisites
Ensure the object model is configured.
Procedure
Disabling object model data storage prevents subsequent data reported by the device from being stored in the time series data storage space.
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Access the IoT Platform console.
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On the Instance Overview tab, find the target enterprise edition instance and click the instance card to go to the Instance Details page.
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In the left-side navigation pane, go to Data Service > Data Storage.
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Under the Time Series Storage tab, within the Storage Rules tab, you can toggle Object Model Data Storage or activate Product Data Backup.
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To enable or disable object model data storage:
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Click on the TSL Data Storage Rule in the Operation column to View.
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On the Rule Details page, in the Object Model Storage section, use the dropdown list next to Product to select the desired product and object model Module.
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Toggle the Time Series Storage switch
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Use the switch icon at the top right of the object model list to Enable All or Disable All object model data storage.
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Optional: To retain object model data long-term, enable Product Data Backup. On the Time Series Storage tab, under the Storage Rules tab, select Object Model Data Storage Rules and then click Data Backup in the Jump To Enable column. You are redirected to the page, where you can enable the product's data backup and choose the more cost-effective offline storage.
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What to do next
To configure the storage duration and IOPS ratio for object model data, see Manage time series storage configuration.