NetWorker: How to use the DDPCONNCHK tool to test DD ddboost connectivity from NetWorker Hosts

Summary: DDPCONNCHK can be used to test ddboost connectivity for NetWorker servers, storage nodes, clients, and NetWorker VMware Protection (NVP) vProxies. This is effective for testing ddboost user credentials and full DD communication from a given host. ...

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Instructions

ddpconnchk can be used to test ddboost connectivity for NetWorker servers, storage nodes, clients, and NetWorker VMware Protection (NVP) vProxies. This is effective for testing ddboost user credentials and full DD communication from a given host. 

Collecting ddpconnchk

Latest version of ddpconnchk:

           ssh <NT USERID>@ddtse-c7-e101.cec.lab.emc.com / password: <NIS PASSWORD>

            /auto/tools/bin/ddpconnchk/8.4.0.0-1172015 (latest ddpconncheck)

Older version of ddpconnchk: 

              https://central.dell.com/solutions/Networker-Tools
1. The ddpconnchk.zip contains multiple versions of the ddpconnchk utility. Use the ddpconnchk utility that matches or closely aligns with the DD OS version of the Data Domain device.
2. Extract the zipped package and copy the ddpconnchk package that is required to the NetWorker system. For example, if testing from a x64 Linux NetWorker server, storage node, or client use the ddpconnchk_linux_x86_64.tar. 

Linux/UNIX Operating Systems

1. Log in to the Linux system ddpconnchk_linux_x86_64.tar was copied to. Go to the directory that the package was copied to using the cd command.
2. Change to root user: 
sudo su -

3. Extract the .tar package:

tar xvf ddpconnchk_linux_x86_64.tar

4. Set the permissions of ddpconnchk:

chmod 755 ddpconnchk

Example:

[root@networker ~]# tar xvf ddpconnchk_linux_x86_64.tar
[root@networker ~]# chmod 755 ddpconnchk
[root@networker ~]# ls -l | grep ddpconnchk
-rwxr-xr-x. 1 59899 59899 3679696 Feb  2 22:54 ddpconnchk
-rw-r--r--. 1 root  root  3696640 May  5  2022 ddpconnchk_linux_x86_64.tar
-rw-r--r--. 1 59899 59899   12086 Feb  2 22:44 ddpconnchk_README.txt
5. An example test would a write dump from the NetWorker server to a ddboost device: 
/ddpconnchk -s DATADOMAIN_HOSTNAME -u DDBOOST_USERNAME -l STORAGE_UNIT_NAME -T writeimage
NOTE: The package includes a README.txt with additional information and examples for diagnosing issues.

Windows Operating Systems

1. Log in to the Windows system the ddpconnchk_win_64.zip was copied to. Using Windows File Explorer go to the directory that the package was copied to.
2. Extract the ddpconnchk_win_64.zip into a new directory. 
3. Open an administrative command prompt to the ddpconchk directory. This can be done from File->Open Command Prompt->Open Command Prompt As Administrator.
4. An example test would be a write dump from the NetWorker server to a ddboost device.  
.\ddpconnchk -s DATADOMAIN_HOSTNAME -u DDBOOST_USERNAME -l STORAGE_UNIT_NAME -T writeimage
NOTE: The package includes a README.txt with additional information and examples for diagnosing issues.

Additional Information

You can identify the Data Domain DDBOOST_USERNAME and STORAGE_UNIT_NAME using the following command from an SSH session on the Data Domain:

ddboost storage-unit show

Example:

sysadmin@ddve01# ddboost storage-unit show
Name           Pre-Comp (GiB)   Status   User      Report Physical
                                                      Size (MiB)
------------   --------------   ------   -------   ---------------
nve                   17180.5   RW       ddboost                 -
------------   --------------   ------   -------   ---------------
 D    : Deleted
 Q    : Quota Defined
 RO   : Read Only
 RW   : Read Write
 RD   : Replication Destination
 M    : Mobile
 m    : Migratable

Affected Products

NetWorker

Products

Data Domain, Data Domain Boost, NetWorker
Article Properties
Article Number: 000022562
Article Type: How To
Last Modified: 07 Aug 2025
Version:  11
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