This section contains recommendations for UVMS start-up in failover.
In failover mode, only one UVMS can be started at a time. A configuration can be implemented to verify upon start-up of a UVMS that no other instance in the failover is already started. If a UVMS instance is already started, all new start-ups are refused.
The database should not support other products.
To activate this configuration, the UVMS node setting ADV_ARCH_ENABLE_CHECK_DB_CONFLICTS must be set to "Y".
This configuration is based on the lock verification for a database table. This verification requires the read right for the external database processes and is therefore not activated by default.
The following scripts can be run by a database administrator:
SQL script to give the right:
MS SQL SERVER: grant VIEW SERVER STATE to <user>;
ORACLE: grant select on v_$session to <user>;
SQL script to take off the right:
MS SQL SERVER: revoke VIEW SERVER STATE from <user>;
ORACLE: revoke select on v_$session from <user>;
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