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How to create dB link to database which has failover in?
See the following: Database Link: DBLink Creation using TAF or SCAN TNS Connect String (Doc ID 399453.1) https://support.oracle.com/knowledge/Oracle%20Database%20Products/399453_1.html Does it means that we have to remove fail-over, connect etc options from tns entry and then create db link?
What are the best practices for Oracle failover?
This section describes Oracle Database 12c configuration best practices to automatically transition application connections from a failed primary database to a new primary database after a Data Guard / Active Data Guard role transition has occurred. This configuration also applies to client’s connection to Real Application Clusters databases.
How to troubleshoot a failover SQL Server Cluster?
Basic Troubleshooting Steps. The first diagnostic step is to run a fresh cluster validation check. For details on validation, see Failover Cluster Step-by-Step Guide: Validating Hardware for a Failover Cluster. This can be completed without any interruption of service as it does not affect any online cluster resources.
Can a node recover a disk from a failed cluster?
Issue 2: A node cannot recover cluster disks that have migrated from a failed node on a shared cluster disk with a different drive letter. Resolution 2: Disk drive letters for the cluster disks must be the same on both servers.
How to create a dB link to a database?
See the following: Database Link: DBLink Creation using TAF or SCAN TNS Connect String (Doc ID 399453.1) https://support.oracle.com/knowledge/Oracle%20Database%20Products/399453_1.html Does it means that we have to remove fail-over, connect etc options from tns entry and then create db link? My TNS entry is below (just a sample)
How to configure TNS entries for failover?
1. Connect from a client server using the ‘bharat-ha’ service, check the instance names 2. From the client server, connected through the ‘bharat-ha’ service start a long running query and check how long it takes to complete SQL> select 1,2,3 from dba_source 1 2 3 1 2 3 1 2 3 1 2 3 140829 rows selected.
What are two types of Oracle create LINK statement?
Oracle CREATE DATABASE LINK statement There are two types of database links: public and private. Private database links are visible to the owners while public database links are visible to all users in the database. For this reason, public database links may pose some potential security risks.