Data Domain

This document highlights minimum, recommended, and latest code versions for Dell Technologies Enterprise and Datacenter Infrastructure products. We carefully evaluate and monitor code deployment data to ensure that product releases meet our stringent expectations to provide our customers with reliable products and solutions.

Veeam UI Displays Different Capacity Values When Data Domain Hard Limit Quota is Configured and Enabled.

This article provides tables of supported stream counts for Data Domain OS (DDOS) 6.0 by Data Domain System Model.

vProxy Image level restores done from the NetWorker Management Console (NMC) may fail with "ERROR: [156] ddp_connect_with_config() failed,Hostname: <Data-Domain-Name>" seen from the "Recovery Results" page.

This article provides estimates on scheduling lead time when booking RPS upgrades.

Data Domain OS may fail to enable the file system or the archive unit if large number of disk devices are attached to system. Other symptoms include disks being in "foreign" state even after rebooting, and the reboot process itself may take too long.

How to reset the iDRAC Password and Configuration on relevant Data Domain systems.

This article shows how to reset the DD3300 iDRAC password remotely with a bash command.

This article explains how to validate the passphrase on a Data Domain system, without changing it, when preparing for operations such as a controller upgrade, head swap, or when verifying against passphrases used on other systems.

How to recall backups that were migrated to Data Domain Cloud Tier.

This article explains the process for using a new encryption key.

This article describes a known issue which can prevent Oracle RMAN from restoring backups from an NFS share if that NFS share points to a replication destination on a Data Domain restorer.

Getting 'Error initializing lsu' when trying to add DD to the Avamar grid.

PowerProtect DD System Manager (DDSM) and Data Domain Management Server (DDMC) access fails with AD Authentication

This article explains the poor replication and recovery performance of Microsoft SQL striped backups using NetWorker and NMM on Data Domain systems. The issue occurs because SQL VDI striping causes fragmented data storage. Upgrading NMM to version 8.2.1.4 or later and applying specific registry settings on the SQL server optimizes VDI data handling and improves Data Domain deduplication efficiency.

Cloud Garbage Collection (GC) FAQ

The article describes how to configure the mtree replication using UI.

This article describes the conditions that trigger the 'NVRAMHardwareFailure' alert on Data Domain systems and outlines the required resolution steps.

The default password for Data Domain Management Center may be required.

This article explains the support status, limitations, and recommended alternatives when considering MTree replication for the default "backup" MTree on Data Domain systems.

Frequently Asked Questions regarding End of Service Life (EOSL) for a Software or Hardware product or a revision

Taking snapshot on live DDVE / Backup a live DDVE VM.

This article explains how to delete an mtree that contains a vDisk pool when the "mtree delete" command fails.

This article provides a process overview for Data Domain Operation System (DDOS) upgrades on Data Domain Highly Available (HA) pairs.

This article explains how to correlate NetWorker sessions and save sets with Data Domain (DD) stream activity during backup, restore, and clone operations.

This article describes an issue in Data Domain Operating System (DDOS) version 7.8 that prevents downloading core dumps from the web interface.

This article helps troubleshoot an NTP daemon issue due to a mismatch of time or time zone between DD and the NTP server.

Data Domain How to create sfs_dump per DD Boost mtree from the UI.

This guide explains what Dial Home is on Data Domain systems, what data it sends to Dell, and how each connection method and report type works. Expectations are set for how these automated reports speed issue detection, simplify support, and improve system‑health visibility.

Recommendations for network latency tolerance and configuration for NetWorker and Data Domain environments