Mirroring latency

This metric measures the latency of a mirroring stream. This is useful for checking the historical status of mirroring and also alerting when mirroring is delayed.

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Metrics install automatically if you have SQL Monitor installed.

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This metric measures the latency of a mirroring stream. This is useful for checking the historical status of mirroring and also alerting when mirroring is delayed. Values are displayed in seconds and calculated every minute.

Mirroring latency, 5.0 out of 5 based on 5 ratings

Metric definition

Name

Mirroring latency

Description

This metric measures the latency of a mirroring stream. This is useful for checking the historical status of mirroring and also alerting when mirroring is delayed. Values are displayed in seconds and calculated every minute.

The T-SQL query that will collect data

Instances to collect from

Select the instance containing mirrored databases

Databases to collect from

the names of databases that use mirroring

Collection frequency

60

Use collected or calculated values

Leave the Use a calculated rate of change between collections check box unchecked

Metric collection

Enabled

Alert definition

Alert name

Mirroring latency increased

Description

This alert is raised when the latency of a mirrored database (in seconds) is greater than the threshold specified. You may consider checking the state of the mirrored database.

Raise an alert when the metric value goes

Above the defined threshholds

Default threshold values

High:259
Medium:
Low:

Raise an alert when the threshold is passed for

1 collection

Alert is

Enabled