My Oracle Support Banner

RMAN Backups Hang using dNFS With NFSv4 (Doc ID 2504179.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


o A RMAN backup for a 12.2..0.1 database hangs eventually the processes wait event is "Disk file operations I/O".

o Backups are done to ZFS file systems. and databases on the cluster are able to run backups with no issues.

o The dNFS traces, after setting events, shows a process sending continuously:


2018-10-31 12:59:39.053 :Direct NFS:kgnfsv4.c@4091:kgnfs_complete_create4():22:50842: status 10011

2018-10-31 12:59:39.053 :Direct NFS:kgnfsv4.c@5341:kgnfs_nfs4error():22:50842: State management error 10011

2018-10-31 12:59:39.053 :Direct NFS:kgnfs.c@13558:kgnfs_processmsg():22:50842: Got state management error 10011, reissuing 1 ops

2018-10-31 12:59:39.053 :Direct NFS:kgnfs.c@3864:kgnfs_renew_state():22:50842: Renewing state for error 10011

2018-10-31 12:59:39.053 :Direct NFS:kgnfs.c@3994:kgnfs_renew_state():22:50842: Return status is 0


Changes was just installed


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.