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NDMP Backup Fails with NDMP_NO_DEVICE_ERR After Adding New ONTAP FAS/AFF Nodes in NetBackup

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Applies to

  • ONTAP clustered environments (AFF / FAS)
  • Veritas NetBackup (NDMP backups)
  • NDMP Direct Attach (local tape) configurations

Issue

After adding new nodes (for Example, node3) to an existing cluster, NDMP backup jobs initiated by NetBackup fail when attempting to utilise the new nodes.
NDMP backups fail for volumes hosted on newly added nodes
Netbackup Log Output
May 18, 2026 5:03:37 PM - Error bptm (pid = 2188) cannot open ndmp device <>, error code 16 (NDMP_NO_DEVICE_ERR)
May 18, 2026 5:11:35 PM - Error bptm (pid = 2188) error requesting media, TpErrno = Robot operation failed
May 18, 2026 5:11:35 PM - Error bptm (pid = 2188) cannot open ndmp device <>, error code 16 (NDMP_NO_DEVICE_ERR)
May 18, 2026 5:11:36 PM - Warning bptm (pid = 2188) media load operation reported an error

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