Avamar: How to Run Redirected NDMP Restores Using avndmp Command Line on Accelerator Node

Summary: Use the avndmp command on the accelerator node to perform redirected Network Data Management Protocol (NDMP) restores directly to the NDMP filer. This bypasses the Avamar console browsing limits. ...

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Instructions

Run a redirected NDMP restore with avndmp

Prerequisites

  • Access to an Avamar accelerator node
  • Valid backup label that contains the file to restore
  • Correct NDMP plugin ID (such as, 8003 for Celerra/VNX, 7003 for NetApp)

Step‑by‑step procedure

  1. Log in to the accelerator node with a user that has avndmp privileges.
  2. Identify the following values:
    • Restore target directory on the NDMP filer (such as, /nfs_1g-1/restore_directory)
    • Full path of the file in the backup (such as, /nfs_1g-1/hl/f01)
    • Accounting path for the client (format / /, such as, /client/vnx01-dm2-nfs)
    • Backup label number that holds the file (such as, 714 )
    • NDMP plugin ID ( --pidnum ), matching the storage system
  3. Construct the avndmp command using the values from step 2. Include optional parameters for logging and directory locations if the defaults differ.
  4. Run the command.
  5. Verify that the file appears in the restore target directory on the NDMP filer.

Command example

avndmp --restore \
       --restoretarget="/nfs_1g-1/restore_directory" \
       "/nfs_1g-1/hl/f01" \
       --acnt=/client/vnx01-dm2-nfs \
       --log= \
       --prefix=Test-CLI-Redirected-Restore_ \
       --vardir=/usr/local/avamar/var/vnx01-dm2-nfs \
       --bindir=/usr/local/avamar/bin \
       --sysdir=/usr/local/avamar/etc \
       --avtarflags="--pidnum=8003 --log --path=/client/vnx01-dm2-nfs " \
       --labelnum=714

 

Parameter description

  • --restoretarget: Destination path on the NDMP filer to restore to
  • Source file (second argument): Path of the file inside the backup set
  • --acnt: Accounting path ( / / ) for the client
  • --prefix: String prepended to log file names
  • --vardir, --bindir, --sysdir: Directories on the accelerator node (use defaults unless customized)
  • --avtarflags:

             --pidnum: NDMP plugin ID (8003 for Celerra/VNX, 7003 for NetApp)
             --path: Same accounting path passed to avtar

  • --labelnum: Backup label that contains the file to restore
Note: The Avamar console cannot browse directories because the number of files exceeds MCS browsing limitsWhen restoring many files from different locations using a list of paths
Caution:  Using an incorrect --pidnum or --labelnum may restore the wrong file or cause the command to fail.

Affected Products

Avamar

Products

Avamar
Article Properties
Article Number: 000156411
Article Type: How To
Last Modified: 18 Dec 2025
Version:  6
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