RMAN Restore from ASM to Non ASM in 12c Take a long time

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RMAN Restore from ASM to Non ASM in 12c Take a long time
RMAN-03090: Starting restore at 2015-11-09 15:01:53  RMAN-08030: allocated channel: ORA_AUX_DISK_1  RMAN-08500: channel ORA_AUX_DISK_1: SID=1 device type=DISK
RMAN-08021: channel ORA_AUX_DISK_1: restoring control file  RMAN-08180: channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01  RMAN-08505: output file name=/oradata/C12102/controlfile/control01.ctl
RMAN-03091: Finished restore at 2015-11-09 15:01:55

Actual Restore starts after 20 min

RMAN-03090: Starting restore at 2015-11-09 15:21:59  RMAN-12016: using channel ORA_AUX_DISK_1  RMAN-12016: using channel ORA_AUX_DISK_2  RMAN-12016: using channel ORA_AUX_DISK_3  RMAN-12016: using channel ORA_AUX_DISK_4

Alert log shows the below messages during the above time when there seems to be No Activity by RMAN after restoring the Controlfile

WARNING: failed to start ASMB (ASM instance not found)
Errors in file /opt/oracle/diag/rdbms/c12102/C12102/trace/C12102_asmb_24847.trc:  ORA-15077: could not locate ASM instance serving a required diskgroup  ORA-29701: unable to connect to Cluster Synchronization Service  WARNING: ASMB exiting with error

This problem due to unpublished BUG 19503821

You must apply patch number 19503821 to solve this problem.

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RMAN Restore from ASM to Non ASM in 12c Take a long time

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RMAN Restore from ASM to Non ASM in 12c Take a long time

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