FAQs¶
Q: What preparation work is required before configuring TSDB storage policies?¶
A: Before configuring TSDB storage policies, you need to request for the Time Series Database resource for your organization. Otherwise, the configured TSDB storage policies will not take effect by default. To request for the Time Series Database resources, see Resource Management on EnOS.
Q: When should I configure TSDB storage policies?¶
A: It is recommended that you configure TSDB storage policies after your devices are connected to the IoT hub and before device data is ingested. Otherwise, the ingested data will not be stored in TSDB by default. If you want to store the data that is processed by the streaming engine, you must configure the TSDB storage policies for the processed data before the stream processing pipelines start running.
Q: Will the TSDB storage policies take effect immediately after the configuration is saved?¶
A: The storage policies will take effect in about 5 minutes after the configuration is saved.
Q: How many storage policy groups can be created for an organization?¶
A: Currently, an organization can have at most 5 storage policy groups.
Q: Can attributes of models and measurement points that are associated with TSDB storage policies be modified?¶
A: When TSDB storage policies are configured, the associated measurement point IDs, measurement point types, and data types cannot be modified. Otherwise, the stored data cannot be retrieved with EnOS TSDB data service APIs.
Q: My devices are connected and have started uploading data to the cloud. Why could I not get data through the data service APIs?¶
A: After device connection, you need to configure TSDB storage policies for your device measurement points. Otherwise, the ingested data will not be stored in TSDB by default, and you cannot get the data with API.
Q: Can data stored in TSDB be deleted?¶
A: Data stored in TSDB can be deleted with the Data Deletion feature. For more information, see Deleting Data in TSDB.
Q: Can data stored in TSDB be archived?¶
A: Yes. Data stored in TSDB can be archived with the Data Archiving service.