Percentage of used/available database space

 23,918 0
This metric measures the ratio between used database space and total available space, also taking into account current size, maximum size and the amount of free space for each drive. The values collected help you maintain control over the database storage area, and monitor database growth in combination with general space management on a database file's host. Read more

Mirroring latency

 13,996 1
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. Read more

CPU signal wait time

 21,226 0
This metric measures the percentage of time spent waiting for CPU resources to service a thread. A high signal wait time for all wait types may indicate that CPUs are being overused, forcing tasks to wait for SQL Server processes. Read more

Disabled backup jobs

 9,670 0
This metric investigates backup jobs, searching for any that may be disabled inappropriately. If any of your backup jobs have been disabled inappropriately, you may not be aware of their state. Read more

Custom metric walkthrough

 20,197 0
You’ve found a metric that you want to use in your SQL Server environment. What should you do next? Getting a metric working in SQL Monitor is easy, and we’ve provided this short walkthrough to help you get started. In this scenario, you’ve found TJay Belt’s Disabled backup jobs example metric. After reading through the […] Read more

Percentage of fragmented indexes

 26,633 0 ,
This is a general indicator of performance problems. Index fragmentation can affect the rate of return for moderate to large tables. If multiple indexes are fragmented throughout the database, then an index maintenance strategy needs to be evaluated. Read more

What are custom metrics?

The Redgate Monitor custom metric feature lets you run T-SQL queries against your SQL Servers to collect specific data. You can analyze and receive alerts about your custom data just like everything else Redgate Monitor collects.

But what if you don’t want to write your own queries? No problem. Redgate has brought together a range of quality custom metrics for you to use in Redgate Monitor, which are all are free, tried and tested. You can install straight away, and use the resources on this site to help you write your own.

See the Getting Started guides

What is Redgate Monitor?

Redgate Monitor is a SQL Server performance monitoring tool that gives you real-time and historical SQL Server performance data with alerts and diagnostics.

With its embedded expertise from SQL Server experts and MVPs, it gives you the information and advice you need to find and fix issues before users are even aware.

Find out more about Redgate Monitor

Featured custom metrics

  • Total database file size

    by Hugo Kornelis | 7,194 views |

    This custom metric measures the total database file size (data files and log file combined). An increase in this metric signals that a database was grown. When not done by the DBA, this is an autogrow. Excessive autogrow events should be prevented as this can result to file fragmentation. Try to manually grow files before […] Read more

  • Number of active backups and restores

    by Redgate Monitor Team | 5,446 views |

    This metric will display the total number of active backups and restores on a server. This can be used to correlate with other metrics to explain why disk IO and CPU usage could have changed. Read more

  • Full backup to odd path

    by Eelco Drost | 5,105 views |

    This custom metric queries the MSDB database to search for multiple paths for a full backup Read more

See all custom metrics