RMAN-08132: WARNING: Cannot Update Recovery Area Reclaimable File List, Error Resolution

Error:
During an RMAN backup, we may receive the following errors.
ORA-00245: check file backup operation failed, we receive a warning.
RMAN-08132: WARNING: cannot update recovery area reclaimable file list, we see the warning.
Reason:
The directory supplied as Snapshot Controlfile in the RMAN configuration cannot be accessed from all RAC servers.
What do we have to do for this?
Solution:
Settings need to be changed. This directory must be given a public directory that is accessible to all servers in the RAC environment.
RMAN > show all;
.....
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/snapcf_orcl1.f'; # default
RMAN > CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/common_directory/snapcf_orcl1.f';
The public directory on the NFS file system must be linked with the following parameters.
rw,bg,hard,nointr,rsize=32768,wsize=32768,tcp,vers=3,timeo=600,actimeo=0,noac
