Data Domain

This article explains how support for newly introduced regions can be added for already supported and qualified Cloud Tier providers on Data Domain systems.

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.

This is a guide for troubleshooting cloud connectivity issues. It includes permissions for the cloud provider storage account, certificates related to the Cloud provider, and connectivity checks for the Cloud storage account. It applies to all Data Domain (DD), Data Domain Virtual Edition (DDVE) onPrem, and DDVE-ATOS systems.

This article describes the procedure to configure SNMP for iDRAC on retention-lock compliance enabled Dell Data Domain systems.

Backups of large save sets intermittently fail when writing to Data Domain. The error observed is "5057-File handle is stale." This may be observed on various data types but is specific to large backups that span many hours.

This article describes error messages which may be displayed on Data Domain Restorers (DDRs) when creating a mtree or listing mtree options as a user with a limited-admin role.

This article provides an overview of the maximum number of interface groups (ifgroups) supported, and the maximum number of interfaces and clients supported in the ifgroups.

This article explains how to manage time synchronization on systems integrated with Active Directory (AD). It includes steps to verify time sync configuration, detect potential conflicts between Network Time Protocol (NTP) and AD time control. It also provides commands to disable Common Internet File System (CIFS) time sync and ensure proper time management. It also includes validation steps using logs and system status checks to ensure correct configuration.

How to setup Commvault with DD Retention Lock

This document describes how to access the DD3300's console through iDRAC.

The error "Registry key collection.1.expunge.next.schedule.time does not exist" may appear when the "filesys clean show schedule" command is run on newly installed Data Domain.

How to Manage SMT tenants with tenant user or tenant admin using UI (DDMC and DDEM).

This article outlines the procedure for performing an offline firmware update on Aries-KP model drives (HUS72604CLAR3000 and HUS72604CLAR4000) from version N9C0 to NE70.

This article explains why an IBM iSeries system may fail to VARY ON a Data Domain Virtual Tape Library (VTL) after the number of storage slots is increased beyond the supported limit. It also provides guidance on verifying slot counts and resolving the issue.

Attempts to delete a mtree or DDBoost that is empty and the retention-lock (enabled or disabled) fails.

This article describes Long-Term Retention (LTR) basic concepts, configuration, and frequently asked questions (FAQ) relating to LTR functionality.

Basic troubleshooting steps to investigate data movement failures or issues.

After a fresh deployment of Data Domain Virtual Edition (DDVE) in Microsoft Azure, replication authentication may fail due to certificate subject mismatches caused by Azure‑assigned DNS suffixes, hostname length limits, and automatic use of localdomain in certificates.

Starting with Data Domain releases from April 2026, updates have been introduced to iDRAC operator user behavior as part of Dell’s ongoing security enhancements. These updates help protect your system by preventing prolonged or unauthorized privileged access, while continuing to ensure full supportability. When maintenance that requires elevated access is necessary, Dell Support will follow established and approved procedures and will return the system to a compliant and secure state once the work is complete.

This article describes the functionality offered by the optional 'force' and 'update' arguments that can be added to the 'filesys fastcopy' command.

This article provides a quick reference for identifying the PowerEdge server models and their corresponding generations used in PowerProtect Data Domain systems. Each model aligns with a specific generation of PowerEdge hardware, which determines performance characteristics, component compatibility, and support life cycle.

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

Simple Network Management Protocol (SNMP) traps fail to send if the SNMP trap host configuration includes a port number. A defect in IP address validation introduced in DDOS 8.3 and 8.1 and 7.10.1.40 causes this issue

The Data Domain System Manager (GUI) may display replication status incorrectly and report the error "please check if proxy is reachable from Management Host." This can happen when configuring a replication pair or when entering the replication tab.

The Data Domain command line (CLI) or web UI can become unresponsive due to issues with the system management service (SMS).

This article answers the most frequent questions regarding compression. Data Domains are independent of data type. Data Domain uses compression algorithms that back up only unique data - duplicated patterns or multiple backups are stored only once.

When Retention Lock Compliance (RLC) is configured on a Data Domain system, the active node reboots while the standby node remains unchanged, causing a High Availability (HA) error on the standby node.

Applying an ELMS License to a DD or DDVE may be performed using the DD System Manager or DD CLI.

This article explains how to delete Data Domain mtrees.

This knowledge article provides a collection of frequently asked questions (FAQ) about Data Domain Data At Rest Encryption (DARE) in a consolidated location for ease of reference.