mount -o rw,intr,hard,bg,proto=tcp,vers=3 dd32123win-pn:/data/col1/oracle /backup

mount -o rw,intr,hard,bg,rsize=32768,wsize=32768,proto=tcp,vers=3 dd32123win-pn:/data/col1/oracle /backup

https://pavandba.com/2012/10/02/solution-for-ora-27054-nfs-file-system-where-the-file-is-created-or-resides-is-not-mounted-with-correct-options-in-rac-env/
https://kb.netapp.com/support/s/article/ka11A0000000pwrQAA/ora-27054-network-file-system-where-the-file-is-created-or-resides-is-not-mounted-with-correct-options?language=en_US

https://grepora.com/2016/08/24/ora-27054-nfs-file-system-where-the-file-is-created-or-resides-is-not-mounted-with-correct-options/
http://www.oraclenerd.com/2011/03/ora-27054-nfs-file-system-where-file-is.html
https://sort.veritas.com/public/documents/sfha/6.0/linux/productguides/html/virtualstore_admin/ch03s04s01.htm
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 04/17/2017 11:45:59
ORA-19504: failed to create file “/backup/pwindb01/pwindb1/rjs1tjnm_1_1”
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options
Additional information: 5
Additional information: 11
channel ORA_DISK_1 disabled, job failed on it will be run on another channel
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_2 channel at 04/17/2017 11:45:59
ORA-19504: failed to create file “/backup/pwindb01/pwindb1/rks1tjnm_1_1”
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options
Additional information: 5
Additional information: 11
mount -o rw,intr,hard,bg,rsize=32768,wsize=32768,proto=tcp,vers=3 dd32123win-pn:/data/col1/oracle /backup