DataService Studio on IoT Platform provides a time series data storage feature for device data, including Thing Specification Language (TSL) data (properties, services, and events) reported by devices and custom topic data configured through time series data storage rules.
Related Concepts
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Term |
Description |
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Time Series Data Storage IOPS |
The total number of data rows read and written per second. Note
Each property, service, or event counts as one data row. A single message may contain multiple properties, services, or events, producing multiple data rows. Each instance is allocated 100 IOPS by default. You can select the appropriate IOPS when purchasing or upgrading an instance. IOPS is typically split into 90% for writes and 10% for reads. For example, with 1,000 IOPS, the maximum writes would be 900 and reads would be 100. Write and read IOPS are tallied separately. You can adjust the IOPS ratio to suit your needs, but the read ratio must not exceed 50%. |
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Time Series Data Storage Space |
All device TSL data and data from time series data storage rules are stored in a unified storage space. Each instance includes 1 GB of storage space by default. You can select additional space when purchasing or upgrading an instance. Storage capacity for all time series data is aggregated. |
Feature Description
The following regions support time series data storage for Enterprise IoT Platform instances: China (Shanghai), China (Beijing), China (Shenzhen), Japan (Tokyo), Singapore, and US (Virginia). For details about instance types, see Differences in Types and Features of Enterprise Edition Instances.
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Reporting and querying device time series data are subject to IOPS and storage space limits.
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The default retention period for time series data is 365 days.
Limits
|
Limit Item |
Description |
Limit |
|
Time Series Data Storage Rules |
The maximum number of time series data storage rules per instance. |
1,000 |
|
Custom Topic |
The maximum number of topics per rule. |
1,000 |
Usage Instructions
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Purchase the IOPS and storage space required for time series data. For more information, see Purchase Enterprise Edition Instances.
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Device-reported TSL data is stored automatically by default. You can disable storage for specific TSL data under a particular product.
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To store custom topic data reported by devices, create time series data storage rules manually.
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Use the following APIs to write and query device time series data:
API
Description
Writes custom topic data to time series data storage.
Queries the snapshot status of device time series data.
Queries stored device time series data.
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DataService Studio automatically cleans up expired time series data. You can modify the data retention period as needed.
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Monitor time series data IOPS and storage space usage for your instance and configure alert rules.