ORA-01105: mount is incompatible with mounts by other instances

Database startup with srvctl failed with following error :

PRCR-1079 : Failed to start resource ora.database.db
CRS-5017: The resource action "ora.database.db start" encountered the following error:
ORA-01105: mount is incompatible with mounts by other instances
ORA-19808: recovery destination parameter mismatch

Verified the value of db_recovery_file_dest & db_recovery_file_dest_size parameters in database :

SQL> sho parameter db_recovery

NAME                                 TYPE

------------------------------------ ---------------------------------

VALUE

------------------------------

db_recovery_file_dest                string

+DATA

db_recovery_file_dest_size           big integer

15G

SQL>

SQL> sho parameter db_recovery

NAME                                 TYPE

------------------------------------ ---------------------------------

VALUE

------------------------------

db_recovery_file_dest                string

+DATA

db_recovery_file_dest_size           big integer

14G

SQL>

Changed db_recovery_file_dest_size to match on both instances :

SQL> alter system set db_recovery_file_dest_size=15G scope=both;

System altered.

SQL>

Started DB successfully using srvctl.