22 October 2020

Databases at 80% of max file size

by Steve Jones

2,365 0 Storage

Metrics install automatically if you have Redgate Monitor installed.

If you are using Redgate’s SQL Server monitoring tool, Redgate Monitor, you can instantly install and run this metric on your servers.

This metric tracks the largest file in a database as a percentage of the maximum file size. If there are 3 files, and 2 are at 50% of the max set (max_usage in sys.database_files), and a third is at 60%, the 60% number is returned.

Metric definition

Name

Databases at 80% of max file size

Description

The T-SQL query that will collect data


		
			
			
Transact-SQL
			
			WITH cteSize (PercentAutoGrowth) AS (
SELECT (CAST(size AS NUMERIC(10, 2)) / df.max_size) * 100 AS PercentAutoGrowth
FROM sys.database_files AS df
WHERE
df.type = 0
AND df.max_size > 0
)
SELECT MAX(cteSize.PercentAutoGrowth)
FROM cteSize
			
				
					
				
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						WITH cteSize (PercentAutoGrowth) AS (
SELECT (CAST(size AS NUMERIC(10, 2)) / df.max_size) * 100 AS PercentAutoGrowth
FROM sys.database_files AS df
WHERE
df.type = 0
AND df.max_size > 0
)
SELECT MAX(cteSize.PercentAutoGrowth)
FROM cteSize

Instances to collect from

select all

Databases to collect from

select all

Collection frequency

1 hour

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

Database at 80% of max file size allowed

Description

At least one file in the database is at 80% of the max file size set.

Raise an alert when the metric value goes

the defined threshholds

Default threshold values

High:	90
Medium:	80
Low:

Raise an alert when the threshold is passed for

collections

Alert is

Enabled

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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.

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.

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Databases at 80% of max file size

Metric definition

Name

Description

The T-SQL query that will collect data

Instances to collect from

Databases to collect from

Collection frequency

Use collected or calculated values

Metric collection

Alert definition

Alert name

Description

Raise an alert when the metric value goes

Default threshold values

Raise an alert when the threshold is passed for

Alert is

What are custom metrics?

What is Redgate Monitor?

Featured custom metrics

Total database file size

Number of active backups and restores

Full backup to odd path

Find metrics