Steps to Enable fast_start failover (automatic) in Data Guard(DG) Broker

Assumption: 

You have setup the data guard and broker successfully and the apply is working properly. 

Steps to Setup Data Guard Broker (DG BROKER) in Oracle 12c RAC Database with ASM

You have setup the data guard in your primary & standby database and apply is working properly. 

Steps to Setup / Configure Data Guard and Broker on Oracle 12c RAC ASM Multi Node Database

Assumptions 
Primary

Scan              : CLUSCANPROD01
DB Name           : ADMPROD

ORA-16693: requirements not met for enabling fast-start failover

Error Description 

Even after setting up all parameters, the data guard enable fast_start failover gives following error.

RMAN Restore Failed RMAN-06100: no channel to restore a backup or copy of datafile n

Problem Description

RMAN restore command failed with following error. 

RMAN-06100: no channel to restore a backup or copy of datafile 

Fix OEM emctl Error: Backend WLS or EM application seems to be down

Problem Description:

Unable to launch the OEM as it gives error Backend WLS or EM application seems to be down 

Fix ORA-15045 ORA-15120 ORA-27090: Unable to reserve kernel resources for as

Error Description

Alter system command fails with ORA-27090: Unable to reserve kernel resources for as

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