SLO タイプの比較

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概要

When creating SLOs, you can choose from the following types:

Metric-based SLOs: can be used when you want the SLI calculation to be count-based, the SLI is calculated as the sum of good events divided by the sum of total events.
Monitor-based SLOs: can be used when you want the SLI calculation to be time-based, the SLI is based on the Monitor’s uptime. Monitor-based SLOs must be based on a new or existing Datadog monitor, any adjustments must be made to the underlying monitor (cannot be done through SLO creation).
Time Slice SLOs: can be used when you want the SLI calculation to be time-based, the SLI is based on your custom uptime definition (amount of time your system exhibits good behavior divided by the total time). Time Slice SLOs do not require a Datadog monitor, you can try out different metric filters and thresholds and instantly explore downtime during SLO creation.

The supported history duration for Metric-based and Time Slice SLOs matches your account's metric duration (by default, this is 15 months).

Comparison chart

	Metric-based SLO	Monitor-based SLO	Time Slice SLO
Supported data types	Metrics with type of count, rate, or distribution	Metric Monitor types, Synthetic Monitors, and Service Checks	All metric types (including gauge metrics)
Functionality for SLO with Groups	SLO calculated based on all groups Can view all groups in SLO side panel and SLO widget	Supported for SLOs with a single multi alert Monitor Option 1: SLO calculated based on all groups (can view all groups in SLO side panel and SLO widget) Option 2: SLO calculated based on up to 20 selected groups (can view all selected groups in SLO side panel and SLO widget)	SLO calculated based on all groups Can view all groups in SLO side panel and SLO widget
SLO side panel	Can set custom time windows to view up to 15 months of SLO history	Can set custom time windows to view up to 3 months of SLO history	Can set custom time windows to view up to 15 months of SLO history
SLO alerting (Error Budget or Burn Rate Alerts)	Available	Available for SLOs based on Metric Monitor types only (not available for Synthetic Monitors or Service Checks)	Available
SLO Status Corrections	Correction periods are ignored from SLO status calculation	修正期間は SLO ステータスの計算から無視されます	Correction periods are counted as uptime in SLO status calculation
SLO widgets (SLO List widget or SLO widget)	Can view up to 15 months of historical data with the SLO widget	Can view up to 3 months of historical data with the SLO widget	Can view up to 15 months of historical data with the SLO widget
SLO Data Source (up to 15 months of historical data)	Available	Not available	Available
Handling missing data in the SLO calculation	Missing data is ignored in SLO status and error budget calculations	Missing data is handled based on the underlying Monitor’s configuration	Missing data is treated as uptime in SLO status and error budget calculations
Uptime Calculations	N/A	Uptime calculations are based on the underlying Monitor If groups are present, overall uptime requires all groups to have uptime	Uptime is calculated by looking at discrete time chunks, not rolling time windows If groups are present, overall uptime requires all groups to have uptime
Calendar View on SLO Manage Page	Available	Not available	Available
Public APIs and Terraform Support	Available	利用可	利用可能