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Top SLES Issues/Workarounds/Best Practices for NFS v3/v4.0

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Applies to

  • NetApp FAS controllers
  • Data ONTAP 7-Mode
  • Clustered Data ONTAP

Answer

This article provides information on the top known issues, workarounds, and best practices for SLES clients, when used with NetApp FAS controllers running Data ONTAP 7-Mode or clustered Data ONTAP.

Issue 1

SLES 11 SP1/SP2/SP3: NFS v3/4.0: The application reports EIO during storage failovers.

Description: On storage failovers, NFS v3/v4.0 applications running over  tcp might encounter a failure reporting the following errors:

'    error no. 5 (EIO)    '

'    error no. 13 (Permission denied)    '

'    error no. 2 (No such file or directory)    '

Issue 2

SLES11 SP1 /SP2: NFS v4.0: Improper file ownership for the NFS v4 mounts, which results in unavailability of files under automount mounts.

Workaround
  • Make sure the domain in /etc/idmapd.conf file matches the domain setting for NFS option "-v4-id-domain" on the NFS server, and restart /etc/init.d/nfs  on the client to map the correct users while mounting with NFS v4.0.
  • The BUG link for the reference from Novell can be found here.
Best Practices:

See TR-4067 for Clustered Data ONTAP NFS Best Practice and Implementation Guide.

Additional Information

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