My Oracle Support Banner

NetApp: Using 'nolock' NFS Mount Option with non-RAC Systems Results in Database Corruption (Doc ID 430920.1)

Last updated on FEBRUARY 14, 2022

Applies to:

Linux OS - Version 2.4.9 to 2.6.18-128
Oracle Cloud Infrastructure - Version N/A and later
Linux x86
Linux x86-64
Linux Itanium *** ***
Linux Kernel - Version: 2.4.9 to 2.6.18-128.EL5


You are using NFS for datafile storage, without Real Application Clusters (RAC), and the mount point with the datafiles is using the 'nolock' NFS mount option.  Then 2 nodes accidentally open the same database.  Here are some symptoms you might see:

1) Database detects the other node, and fails during mount:

and you used the nolock NFS mount option to workaround the errors.


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
 How to Clear Stuck NFS Locks on NetApp Filer(s)

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