eG Monitoring
 

Measures reported by AzrDatabaseTest

Microsoft Windows Azure SQL Database is similar to an on-premises Microsoft SQL Server and extends the SQL Server database capability to the cloud. Azure SQL Database lets you provision and deploy relational database solutions to the cloud, including many benefits such as, rapid provisioning, scalable, high availability and minimal maintenance overhead.

Maintaining Azure SQL database on the cloud is easy to manage, with less effort, because of the complete infrastructure provided by Microsoft System Center. Though the Azure SQL database can be easily managed and can be included as a resource in a resource group, it is also essential to keep track on the day-to-day performance of the Azure SQL database. To achieve this, administrators may use the AzrDatabaseTest.

For each Azure SQL database instance in a resource group, this test reports the current state and also the resource utilization. Using this test, administrators can identify the Azure SQL database instance that is improperly sized with CPU, memory and I/O resources.

Outputs of the test : One set of results for each Resource Group: Azure SQL Database logical server: Azure SQL Database instance of the target Microsoft Azure Subscription being monitored

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Db_status Indicates the current status of this database instance.   The values reported by this measure and its numeric equivalents are mentioned in the table below:

Measure Value Numeric Value
Unknown 0
Online 1


Note:

By default, this measure reports the Measure Values listed in the table above to indicate the current status of this database instance. The graph of this measure however, represents the status of a server using the numeric equivalents only.

The detailed diagnosis of this measure if enabled, lists the location of the database instance, the edition, the date on which the instance was created, the collation of the database instance, the default secondary location of the instance and the service level objective of the instance.
Max_db_size Indicates the maximum size allocated to this database instance. MB  
CPU_percent Indicates the average percentage of CPU utilized by this database instance. Percent  
Physical_data_read_percent Indicates the percentage of physical data that was read from this database instance. Percent  
Log_write_percent Indicates the percentage of logs written to this database instance. Percent  
Storage_percent Indicates the percentage of space utilized in this database instance. Percent A value close to 100 for this measure denotes that the database instance is running short of space.
Storage Indicates the amount of memory utilized by this database instance. MB A high value for this measure is a cause of concern, If the value of this measure is close to the Maximum database size, then administrators should either increase the memory limit of the database or free up the available resources.
Workers_percent Indicates the percentage of worker threads that are currently running on this database instance. Percent  
Session_percent Indicates the percentage of sessions that are currently opened and used by the clients on this database instance. Percent  
DTU_limit Indicates the maximum number of resources i.e., Database Transaction Units allocated to this database instance. Number  
DTU_used Indicates the number of Database Transaction Units utilized by this database instance. Number  
DTU_consumption_percent Indicates the percentage of Database Transaction Units utilized by this database instance. Percent A value close to 100 is an alert to the administrator to increase the DTUs allocated to the database instance.
Connection_successful Indicates the number of successful connections to this database instance. Number  
Connection_failed Indicates the number of connections that failed to establish on this database instance. Number  
Blocked_by_firewall Indicates the number of connections that were terminated on this database instance due to the blocking activity of the firewall. Number  
Deadlock Indicates the number of connections that experienced deadlock on this database instance. Number Ideally, the value of this measure should be zero. If a sudden/gradual increase in the value of this measure is noticed, then, administrators should query the database to identify when exactly the deadlocks occurred.