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Articles with tag SQL Monitor Rss

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SQL Monitor Custom Metric: Excessive Virtual Log Files in Transaction Log

This metric picks up excessive counts of Virtual Log Files (VLF) in a transaction log that can lead to performance problems, including write performance, restore and recovery times. The ideal value for this metric should be less than 25; excessively high values (greater than 50) can cause high write times when writing to the transaction log.  Read more...
By Press Release 2014/12/11 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 5,578 reads

SQL Monitor Custom Metric: Possible Duplicate Indexes

When a table has multiple indexes defined on the same columns, it produces duplicate indexes that waste space and have a negative impact on performance. This metric measures the number of possible duplicate indexes per database above a set threshold. You can then consider dropping the indexes and reverse the change.  Read more...
By Press Release 2014/11/18 | Source: Red-Gate | Category: index
Rating: (not yet rated)  Rate this |   Briefcase | 6,759 reads

SQL Monitor Custom Metric: Average I/O Stalls

This metric is a great general indicator of performance problems. High stall times indicate I/O problems, which can be attributed to busy physical disks or queries that return large data sets to the client.  Read more...
By Additional Articles 2014/10/28 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 6,474 reads

SQL Monitor Custom Metric: Buffer Pressure

Trying to determine if you have pressure in your buffer allocations can be difficult. This metric reliably indicates if you have a buffer problem using the memory dump from DBCC MEMORYSTATUS() and comparing Target Committed to the Current Committed allocations. If you hit negative numbers you are looking at a buffer issue.  Read more...
By Press Release 2014/10/14 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 5,994 reads

SQL Monitor Custom Metric: Last backup size

Backups are at the heart of the activities of any DBA. You have to restore the backup to know it is good, but you can get an early alert that something is wrong if your backup size changes rapidly or unexpectedly in a short period of time.  Read more...
By 2014/09/16 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 7,105 reads

SQL Monitor Custom Metric: Time Since Last Restore

If your log restores aren't happening when they’re meant to, you want to know about it. You’ll be relying on restoring from logs should anything happen to your databases, and if you can’t restore to a certain point in time, you risk losing valuable data.  Read more...
By Press Release 2014/09/02 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 6,571 reads

SQL Monitor Custom Metric: Out of memory errors

The number of out of memory errors that have occurred within a rolling five minute window. If you just want to keep an eye out for any memory errors, you can watch the ring buffers for the Out of memory errors alert when it gets registered there.  Read more...
By Press Release 2014/08/19 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 8,166 reads

SQL Monitor Custom Metric: Schema Modified

This metric creates an alert that will be raised when something is added to the schema, or the existing schema is modified.  Read more...
By Press Release 2014/08/05 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 7,898 reads

SQL Monitor Custom Metric: WriteLog Wait Time

During a transaction, data is written to the log cache so that it’s ready to be written to the log file on commit, or can be rolled back if necessary. When the log cache is being flushed to disk, the SQL Server session will wait on the WriteLog wait type. If this happens all the time, it may suggest disk bottlenecks where the transaction log is stored.  Read more...
By Press Release 2014/07/25 | Source: Red-Gate | Category: sql monitor
Rating:  Rate this |   Briefcase | 9,216 reads

SQL Monitor Metric: Memory used by ad hoc queries running once

This metric measures the amount of memory used by the total number of ad hoc queries in the plan cache that have only run one time. This value is only accurate for the instant the query is run, and the value can change radically from one capture time to the next.  Read more...
By Press Release 2014/07/14 | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 9,008 reads

SQL Monitor Custom Metric: Ad Hoc Queries Running Once

This metric measures the total number of ad hoc queries in the plan cache that have only run one time. The value is only accurate for the instant the query is run, and the value can change radically from one capture time to the next.  Read more...
By Press Release 2014/06/10 | Source: Red-Gate | Category: sql monitor
Rating:  Rate this |   Briefcase | 1,650 reads

SQL Monitor Custom Metric: Table size (MB)

This metric is useful if you want to know exactly how much physical space a particular table is taking up, including the size of its indexes. If a database is growing quickly within a short time and you suspect a certain table is responsible, you can monitor its actual size, or the rate at which it is increasing.  Read more...
By Press Release 2014/04/15 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 1,488 reads

SQL Monitor Custom Metric: Server principals with default database offline

This metric monitors whether a server principal’s default database is offline. When you create a SQL Server server principal (formerly referred to as a server login) it has a default database setting that is used to assist in a connection request when no database is specified.  Read more...
By Press Release 2014/04/04 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 2,019 reads

SQL Monitor Custom Metric: Performance-Related Database Settings

If you manage a server where you are not in complete control of the creation of databases, or you’re unfamiliar with what settings to change, you may miss things out or set them incorrectly. This metric could pick up on issues that affect performance in obscure ways, and saves you having to search for them when a system suddenly stops performing as you would expect.  Read more...
By Press Release 2014/03/11 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 868 reads

New SQL Monitor Custom Metric: Default User Service Account

Using a default account for SQL Server services can be a security risk for two reasons. Firstly, it can give the service a higher level of permissions than it needs. Secondly, isolation is compromised by several services running under the same account. This metric checks whether SQL Server services are running under any of the default accounts, such as localsystem.  Read more...
By Press Release 2014/01/14 | Source: Red-Gate | Category: sql monitor
Rating:  Rate this |   Briefcase | 1,769 reads

New SQL Monitor Custom Metric: Default TCP Port

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.  Read more...
By Press Release 2013/12/10 | Source: SQL Monitor Metrics | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 1,524 reads

New SQL Monitor Metric: Principals with Sysadmin Login

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.  Read more...
By Press Release 2013/11/11 | Source: Red-Gate | Category: sql monitor
Rating:  Rate this |   Briefcase | 2,958 reads

SQL Monitor Performance Metric: Buffer Cache Used Per Database in MB

Data pages read from disk are placed in the buffer pool with the intention that they will be reused, and accessing them from RAM is faster than from disk. Knowing how much of your RAM is committed to each database can help you provision the right amount of RAM to SQL Server, and also to identify rogue queries that draw too much data into RAM and force data from other databases out of the cache.  Read more...
By Press Release 2013/10/15 | Source: Red-Gate | Category: custom metrics
Rating: (not yet rated)  Rate this |   Briefcase | 3,132 reads

SQL Monitor Performance Metric: SQL Server: Plan Cache: Cache Pages Total

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.  Read more...
By Additional Articles 2013/10/01 | Source: Red-Gate | Category: sql monitor
Rating: (not yet rated)  Rate this |   Briefcase | 2,705 reads

New SQL Monitor Custom Metric: Percentage of Free Log Space

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.  Read more...
By Press Release 2013/09/17 | Source: Red-Gate | Category: sql monitor
Rating:  Rate this |   Briefcase | 2,884 reads
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