SQL Table Size Test
When faced with a disk space crunch on their critical SQL servers, administrators may want to know which databases are hogging the disk space, and which tables on each database have grown beyond permissible limits. The SQL Table Size test provides administrators with this information. The test auto-discovers the databases with tables that exceed a configured size limit, and reports the count of such ‘large sized tables’ for each database. You can use the detailed diagnosis of the test to know which tables in a database are of a large size.
This test has been disabled by default. To enable this test, go to the enable / disable tests page using the menu sequence : Agents -> Tests -> Enable/Disable, pick Microsoft SQL as the Component type, Performance as the Test type, choose this test from the disabled tests list, and click on the << button to move the test to the ENABLED TESTS list. Finally, click the Update button.
This test is applicable only to Microsoft SQL Server 2005 (and above).
Target of the test : A Microsoft SQL server
Agent deploying the test : An internal agent
Outputs of the test : One set of results for every database containing tables that are of size greater than the configured table size gb
Configurable parameters for the test
- TEST PERIOD - How often should the test be executed
- Host – The IP address of the Microsoft SQL server.
- Port - The port number through which the Microsoft SQL server communicates. The default port is 1433.
- ssl – If the Microsoft SQL server being monitored is an SSL-enabled server, then set the ssl flag to Yes. If not, then set the ssl flag to No.
- instance - In this text box, enter the name of a specific Microsoft SQL instance that is to be monitored. The default value of this parameter is “default”. To monitor an Microsoft SQL instance named “CFS”, enter this as the value of the INSTANCE parameter.
USER – If a Microsoft SQL Server 7.0/2000 is monitored, then provide the name of a SQL user with the Sysadmin role in this text box. While monitoring a Microsoft SQL Server 2005 or above, provide the name of a SQL user with all of the privileges outlined in User Privileges Required for Monitoring Microsoft SQL server.
- password - The password of the specified user.
- confirm password - Confirm the password by retyping it.
- domain - By default, none is displayed in the DOMAIN text box. If the ‘SQL server and Windows’ authentication has been enabled for the server being monitored, then the DOMAIN can continue to be none. On the other hand, if ‘Windows only’ authentication has been enabled, then, in the DOMAIN text box, specify the Windows domain in which the managed Microsoft SQL server exists. Also, in such a case, the USER name and PASSWORD that you provide should be that of a user authorized to access the monitored SQL server.
- table size gb - The test will report the count of those tables that are of a size greater than the value (in GB) specified here.
- isntlmv2 - In some Windows networks, NTLM (NT LAN Manager) may be enabled. NTLM is a suite of Microsoft security protocols that provides authentication, integrity, and confidentiality to users. NTLM version 2 (“NTLMv2”) was concocted to address the security issues present in NTLM. By default, the isntlmv2 flag is set to No, indicating that NTLMv2 is not enabled by default on the target Microsoft SQL host. Set this flag to Yes if NTLMv2 is enabled on the target host.
- ISPASSIVE – If the value chosen is yes, then the Microsoft SQL server under consideration is a passive server in a SQL cluster. No alerts will be generated if the server is not running. Measures will be reported as “Not applicable" by the agent if the server is not up.
DETAILED DIAGNOSIS – To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.
The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:
- The eG manager license should allow the detailed diagnosis capability
- Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Indicates the number of tables in this database that are currently of a size greater than the value (in GB) configured against table size gb.
Use the detailed diagnosis of this measure to know which tables in a database are consuming the maximum disk space.