NDMP KBs

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NDMP KBs

Featured

Prepare for NDMP configuration
Verify that the planned configuration is supported

NDMP Authentication Resolution Guide
Solutions to common issues with NDMP Authentication

ndmpcopy in ONTAP
Learn how to run ndmpcopy in ONTAP 9

Unable to discover tape drives or libraries
Troubleshooting workflow when unable to discover tape drives or libraries

NDMP and SVM-DR
Backing up an SVM-DR destination SVM with NDMP

Enable NDMP debug logging
How to enable NDMP debug logging

Other Resources

Commvault fails to connect to Netapp array when configuring NDMPTue, 13 Jan 2026
After a failed SnapMirror restore attempt, ndmpcopy fails with RESTORE IS ABORTEDFri, 09 Jan 2026
Ndmp backup using Avamar failing with magic number 0000ea7cFri, 12 Dec 2025
Ndmp backup using Avamar failing with magic number 79ea0000Thu, 04 Dec 2025
NDMP Backup Fails with Error No Such File or DirectoryMon, 01 Dec 2025
Windows Server Backup job fails with event id 546 when writing backup data to NetApp SMB shareThu, 27 Nov 2025
How to check the status and result of an ndmpcopy operation on ONTAP?Wed, 12 Nov 2025
NDMP backup fails on FlexGroup due to missing Intercluster LIFMon, 10 Nov 2025
NDMP Data Traffic Flows Through Incorrect IP address on ONTAP ClusterWed, 29 Oct 2025
NDMP restore fails with message NDMP Service Log: RESTORE: RESTORE IS ABORTED on DMAWed, 22 Oct 2025
Why Volume used size in ONTAP is Lower than NDMP Backup Estimate sizeFri, 03 Oct 2025
Commvault Backup's fail post MCC switchover indicating Vserver config lockThu, 02 Oct 2025
Slow NDMP Backups – Throughput Degraded Due to Network Latency and Packet LossWed, 01 Oct 2025
Incremental Backup fails on volume with Commvault IntelliSnap as SnapDiff not enabledSun, 28 Sep 2025
Which FC switch zoning configuration should be used when adding a tape library?Sat, 27 Sep 2025
NDMP backup failed with error tapemc.device.releaseFailTue, 16 Sep 2025
Veeam failed to create snapshots for volume : (401) UnauthorizedMon, 08 Sep 2025
SVM migration fails with Apply failed for Object: ndmpRestartableBackup_rdb_uiThu, 04 Sep 2025
SMTape backup job failing on same drive "Error Description: Aborted in tape layer"Tue, 26 Aug 2025
NDMP backup is failing Error Code: 39:501 unable to connect to the tape serverWed, 13 Aug 2025

Commvault fails to connect to Netapp array when configuring NDMPTue, 13 Jan 2026
After a failed SnapMirror restore attempt, ndmpcopy fails with RESTORE IS ABORTEDFri, 09 Jan 2026
NDMP backup is slowFri, 09 Jan 2026
Backup failure when backing up one SVM with a full backupThu, 08 Jan 2026
Poor NDMP backup performance when e0M is the outbound portTue, 06 Jan 2026
NDMP backups fails establishing a connection on port 10000Wed, 24 Dec 2025
How to configure CommVault for NDMP Cluster Aware Backup (CAB)Mon, 15 Dec 2025
Backup application can not communication with storage in new config NDMPMon, 15 Dec 2025
Ndmp backup using Avamar failing with magic number 0000ea7cFri, 12 Dec 2025
Ndmpcopy run via SSH consistently aborts after a fixed amount of timeFri, 05 Dec 2025
NDMP Backup Fails with Error No Such File or DirectoryFri, 05 Dec 2025
Security port scanner reports a vulnerability on port 30000Fri, 05 Dec 2025
Backup of existing NDMP hosts, or adding new hosts, fails in ONTAP 9.10.1 and laterThu, 04 Dec 2025
Ndmp backup using Avamar failing with magic number 79ea0000Thu, 04 Dec 2025
NDMP control or data connections use e0M resulting in poor NDMP backup performanceThu, 04 Dec 2025
Qtree level NDMP backup job for flexgroup failing with image inconsistencyWed, 03 Dec 2025
NDMP restore is failing to create a data connectionMon, 01 Dec 2025
How to check the status and result of an ndmpcopy operation on ONTAP?Mon, 01 Dec 2025
Windows Server Backup job fails with event id 546 when writing backup data to NetApp SMB shareThu, 27 Nov 2025
Socket closes in the beginning of Phase II for NDMP backupThu, 20 Nov 2025