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

Data Domain systems automatically monitor for hardware, software, and environmental conditions that may require service. When certain alerts occur, the system can automatically open a Dial Home Service Request (SR), either immediately or after a short monitoring period. This proactive SR creation ensures timely support while reducing unnecessary or duplicate cases.

Security scanning scripts and applications can have a major impact on Data Domain system performance.

This article explains how to troubleshoot Data Domain systems that fail to join Active Directory and return the generic "internal error" message.

Data Domain (DD) systems include an SNMP agent that can report system status and alerts to external management servers. If SNMP v2 is enabled and configured with default community names such as public or private, security scanners may flag the system as vulnerable to CVE‑1999‑0517.

This article describes a scenario in which an incorrect client ID was specified when configuring multifactor authentication.

After a System Controller Upgrade (headswap), Cloud Tier (CT) access may fail if the system passphrase on the new controller does not match the original passphrase. The Data Domain filesystem cannot decrypt the stored cloud profile, preventing connection to the Cloud Tier.

Avamar checkpoints may fail with the error “Data Domain did not respond to dd show-prop command” when SNMP services on the Data Domain system are disabled or not running. SNMP is required for Avamar to retrieve system properties from Data Domain.

This article describes how to find a list of Data Domain event codes.

This article provides information about different compression algorithms supported by Data Domain along with the impact of converting the system to use the LZ algorithm. Different compression algorithms have different characteristics, providing different compression efficiencies but also requiring different processing resources.

After deploying a new Data Domain Virtual Edition (DDVE) instance in Azure using OAuth authentication, the filesystem fails to start, and the object-store profile cannot be configured. This issue occurs due to token size limitations when using user-assigned managed identities.

Replication may post a warning when an unexpected segment is received. If replication can continue, it does so automatically.

Tools such as Xcopy or Robocopy cannot be used to copy files to Data Domain through CIFS. The error "Request is not supported" occurs. A similar error may occur when trying to drag and drop files from Windows Explorer. Extended Attributes (EA) are not supported.

This article explains how the "Cleanable GiB" value in Data Domain space usage output should be interpreted and used. It also explains how an accurate calculation of cleanable space can be obtained.

This article provides an estimation on scheduling lead time when booking your upgrade with RPS.

The standby or passive node of a high availability (HA) pair does not report active tier unavailable, but the active node reports that HA is degraded.

Data Domain in a Cyber Recovery solution often has inaccurate cleaning estimates due to how fastcopies and deduplication works on the Data Domain.

This article outlines how to identify and resolve Power Supply Unit (PSU) alerts on Data Domain systems. It explains PSU status indicators, verification methods using CLI and UI, and recommended troubleshooting steps.

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.

When attempting to create a Cloud Tier (CT) device for a newly added cloud unit, the process fails with the error "Unable to create the data movement policy for mtree **** and cloud unit ***. HTTP response 500 indicates an error." This issue is caused by stale or incorrect configuration values in the Data Domain properties within NetWorker Management Console (NMC).

After upgrading Solaris to 11.4 SRU 78 or later, DDBoost Solaris clients stop using Distributed Segment Processing (DSP), also known as client‑side deduplication. Resulting in increased network usage and slower backup performance. The issue is caused by an OpenSSL upgrade (1.x to 3.0) that prevents the DDBoost plugin from correctly detecting Solaris system capabilities.

This article explains how to access a Data Domain system over windows using IPMI.

This article describes the purpose of the writev_nospace statistic and explains scenarios where the Data Domain File System (DDFS) may restart due to TCP send‑buffer exhaustion. It also outlines contributing factors, troubleshooting guidance, and potential mitigations.

This page features core documents produced by Dell Content Engineering and Translation (CE&T) team for the Dell PowerProtect Data Domain products.

When upgrading DDOS, Data Domain systems may report a firmware mismatch alert indicating that the current firmware version is not certified for the installed DDOS version.

This KB provides links to the most referenced Dell Knowledge Base articles related to issues with Data Domain Serial Attached SCSI (SAS) components. Common SAS components are Host Bus Adapters (HBAs), Disk Array Enclosures (DAEs), and cabling.

To create a local console connection to the DD3300 system through the rear serial port.

This article explains the support, behavior, and limitations of using Low-Bandwidth Optimization with MTree replication on Data Domain systems.