TAILIEUCHUNG - Oracle Database Administration for Microsoft SQL Server DBAs part 31

Oracle Database Administration for Microsoft SQL Server DBAs part 31 takes the administration topics with which the SQL Server DBA is familiar, translates them into Oracle terms, and then expands on Oracle functionality. Definitions and comparative terms run throughout the book so the SQL Server DBA can easily leverage existing knowledge. This Oracle Press guide also expands on some of the features in Oracle that do not match up directly with SQL Server, and looks at other processes often performed on an Oracle database that would not typically be a standard practice in SQL Server environments | 282 Oracle Database Administration for Microsoft SQL Server DBAs ora. . application ONLINE ONLINE svr-. .dbOl ora. . application ONLINE ONLINE svr-. .dbOl ora. . application ONLINE ONLINE svr-. .dbO2 ora. . application ONLINE ONLINE svr-. .dbO2 ora. . application ONLINE ONLINE svr-. .dbO2 ora. . application ONLINE ONLINE svr-. .dbO2 ora. . application ONLINE ONLINE svr-. .dbO2 ora. . application ONLINE ONLINE svr-. .dbO2 with crs_stat -t grep for OFFLINE for issues CRS_HOME bin crsctl check crs CSS appears healthy CRS appears healthy EVM appears healthy search for where it is not healthy CRS_HOME bin crsctl check crs grep -v healthy Oracle RAC databases can also be managed with OEM. The home page of OEM lists the cluster database and shutdown and startup options are available when you are logged in as SYSDBA. The instances on all of the nodes are listed with their status showing any alerts at the instance level. If ASM instances are used these will also be listed with each instance. Testing RAC Of course you ll want to test the clustering before implementing it in a production environment. With SQL Server clustering you test that the database failover from one node to another node is successful validate that the disk is available and check that the services start automatically with failover. You create a checklist and test plan to verify that the cluster is working properly. With Oracle RAC you can test the failover and confirm that the setup and configuration are working properly. Failover testing includes the client network and storage connections from both servers. Simply rebooting the servers is first on the checklist. Make sure that the Clusterware software is still configured as needed and settings are persistent the server did not revert to older settings . You can run CVU at any time to verify the cluster that includes the networking settings. Another test is to pull the interconnect so .

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