Avamar: Data Domain DD Boost Integration Fails Due to NFSv3 Not Enabled

Summary: Avamar and Data Domain integrations fails when only the NFSv4 protocol is running on Data Domain. DD Boost requires NFSv3 (version 3) to be enabled.

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Symptoms

The process to integrate Avamar and Data Domain fails with error:  
error Error initializing lsu
Inspecting the /ddvar/log/debug/ddfs.info file shows the following error: 
"tid 0x7f11ee607c20): WARNING: MSG-NFS-00008: Rejecting NFS/TCP request from 10.102.183.249/<unknown> (disabled)!"

Cause

DD Boost only works over NFSv3, DD Boost does not use NFSv4. NFSv3 must be enabled.
  • When checking Network File System (NFS) status on the Data Domain, it is enabled but only for v4:
sysadmin@DD# nfs status
The NFS system is currently active and running.
Total number of NFS requests handled = 1107.
NFS server version(s) 4 enabled.
  • When checking NFS status on the Data Domain:
sysadmin@DD# nfs status
The NFS system is currently not active.

Total number of NFS requests handled = 1815.

Resolution

Enable NFSv3 protocol on Data Domain to successfully integrate Avamar and Data Domain.

Consult the relevant Data Domain Operating System Command Reference Guide for appropriate commands as shown below: 
nfs enable
For Example:  
Enable all versions:
nfs enable version all

Enable only version 3:
nfs enable version 3

Additional Information

NFSv3 uses additional ports that are also required by DD Boost. Ports 111, 2049, and 2052 should be open and available. 

The NFSv3 services activate all the required daemons that use these ports enabling successful Avamar and Data Domain integration.

Affected Products

Avamar

Products

Avamar, Data Domain
Article Properties
Article Number: 000039776
Article Type: Solution
Last Modified: 23 Sept 2024
Version:  4
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