Originally posted by: SystemAdmin

I have mounted a NFS from AIX (5.3) to a RHEL3 successfully by
mknfsmnt -f /remote/backup -d /dbrecovery/remote_backup -h BAANBACKUP -t rw -S -b 1024 -c 1024
but when I run my Oracle´s RMAN backup, which was configured the remote disk to '/remote/backup', it return an error:
"ORA-27054: NFS file system where the file is created or resides is not mounted with correct options".
Does anyone know what other especial option need for the Oracle?
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Originally posted by: SystemAdmin

I tested with the NFS and could manually create files and directory there.
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Originally posted by: SystemAdmin

There is nothing that can be done on the AIX side. The only solution is to follow the Oracle Metalink Note:387700.1 Log in as Oracle DBA user
SQL>alter system set event='10298 trace name context forever, level 32' scope= spfile ;
then shutdown immediate/startup the database, then try backup again.
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Originally posted by: SystemAdmin

try this
I had the same issue with trying to create oracle tablespaces
on a Network Appliance disk array.

see metalink note:338086.1

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Originally posted by: SystemAdmin

On HP-UX (Learning AIX) we have it setup to use TCP as the nfs protocol, User NFS Version 3, we hard mount it (beware, this could cause issues if the destination goes away), set our read and write buffers to 32k (for this mount). The fstab entry for HP-UX is this:
10.X.X.X:/backup /backup nfs proto=tcp,vers=3,rw,hard,intr,bg,rsize=32768,wsize=32768 0 2

You should be able to convert that to AIX with the man page... There is an article on metalink about rman backups over NFS mounts.
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Originally posted by: SystemAdmin

The following entry in /etc/vfstab works for Solaris against Oracle 10gR2

NFSHost:NFSPath - /MountPoint nfs no no proto=tcp,vers=3,rw,hard,intr,bg,rsize=32768,wsize=32768
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