Note
Log Analytics was formerly known as Operational Insights.
The following limits apply to Log Analytics resources per subscription:
| Resource | Default Limit | Comments |
|---|---|---|
| Number of free workspaces per subscription | 10 | This limit cannot be increased. |
| Number of paid workspaces per subscription | N/A | You are limited by the number of resources within a resource group and number of resource groups per subscription |
The following limits apply to each Log Analytics workspace:
| Free | Standard | Premium | Standalone | OMS | |
|---|---|---|---|---|---|
| Data volume collected per day | 500 MB1 | None | None | None | None |
| Data retention period | 7 days | 1 month | 12 months | 1 month2 | 1 month 2 |
1 When customers reach their 500 MB daily data transfer limit, data analysis stops and resumes at the start of the next day. A day is based on UTC.
2 The data retention period for the Standalone and OMS pricing plans can be increased to 730 days.
| Category | Limits | Comments |
|---|---|---|
| Data Collector API | Maximum size for a single post is 30 MB Maximum size for field values is 32 KB |
Split larger volumes into multiple posts Fields longer than 32 KB are truncated. |
| Search API | 5000 records returned for non-aggregated data 500000 records for aggregated data |
Aggregated data is a search that includes the measure command |