NetApp: Using 'nolock' NFS Mount Option with non-RAC Systems Results in Database Corruption
(Doc ID 430920.1)
Last updated on AUGUST 04, 2018
Applies to:Linux OS - Version 2.4.9 to 2.6.18-128
***Checked for relevance on 29-MAr-2013***
***Checked for relevance on 15-Nov-2010***
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.
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In this Document
|How to Clear Stuck NFS Locks on NetApp Filer(s)|