This metric checks whether your SQL Server installation is using the default TCP port. It’s widely known that SQL Server 2005 and 2008 listen on TCP port 1433. Keeping this default gives hackers a potential way of attacking your server.
2013-12-10
1,784 reads
This metric counts the number of principals who are members of the sysadmin fixed server role. SQL Server relies on role-based security to manage permissions. If multiple IT system administrators have permissions to set up new SQL Server logins, they might be inclined to do so as part of the sysadmin role. Adding a normal user to the sysadmin role could pose a security risk and is not recommended unless the principal is highly trusted.
2013-11-11
3,175 reads
This metric collects the total amount of memory, in kilobytes, used by the plan cache of an instance to help identify memory pressure or plan cache pollution. It is similar to the SQL Server: memory manager: SQL cache memory counter, but instead of providing the number of 8-kilobyte pages that make up the plan cache, it provides the total memory used.
2013-10-01
3,002 reads
This metric measures the percentage of free space for transaction log files (LDF files). You’ll find this useful if your SQL Server has limited capacity, so you need to maximize existing disk space utilization by minimizing unused space. It will also alert you if the amount of free space drops below the specified thresholds.
2013-09-17
3,155 reads
If the transaction log autogrows rapidly, it can suggest that log backups are not being carried out frequently enough, or another resource may be preventing the log from truncating. This metric measures the number of transaction log files that are greater than 10 GB. The associated alert is raised when the number of files exceeds a specified threshold.
2013-09-03
2,422 reads
A foreign key points to a primary key that must exist in another table, for example, column X in Table 1 must also be present in Table 2. The key protects this link, and only valid data can be inserted in the foreign key column. An untrusted foreign key may threaten a database’s referential and data integrity.
2013-08-20
2,554 reads
This metric returns the number of check constraints that have their is_not_trusted flag set to 1 in the sys.check_constraints table. Untrusted constraints force SQL Server to construct less efficient query plans, because it doesn’t know enough about the kind of data contained in the table. This can point to a data integrity issue which should be investigated.
2013-07-08
2,585 reads
This metric for Red Gate SQL Monitor measures the number of database autogrowth events (data file or log file) in the last hour. Too many autogrowth events causes disk fragmentation which requires a change in the autogrowth settings of a database.
2013-06-25
4,095 reads
This custom metric adds Brent Ozar's popular SP_Blitz scripts to Red Gate SQL Monitor. It looks for configuration, security, health and performance problems, and reports back with a list of issues for you to look into. It’s great for quickly understanding the state of a server you've been asked to look after.
2013-05-29
3,470 reads
You can extend SQL Monitor to track whatever you need to watch on your own system with custom metrics. Grant Fritchey shows us how.
2013-01-15
2,464 reads
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In SQL Server 2025, where can I find information about items that prevent or delay the transaction log truncation?
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