While setting up RMAN backups on a new Solaris 11 server with a NAS drive shared over NFS v3, noticed the below errors..
ORA-19504: failed to create file “/opt/xxx/xxx/xxx/01_xx_xxxx_%u_.bkp”
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options
The issue was with incorrect NFS mount options and the correct options to be used are to update the vfstab with the below mount options and remount the drive which has fixed the issue.
rw,bg,hard,nointr,rsize=32768,wsize=32768,proto=tcp forcedirectio, vers=3
And according to Oracle support notes, the ‘noac’ option should not be specified for RMAN backups and datapump dumpfiles as they may adversely impact the performance.