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 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.

This KB article provides guidance on finding the slot mapping for Data Domain systems.

This article provides best practices and configuration guidelines for applications with the Data Domain DD Boost File System Plug-In (BoostFS). In addition, the article contains insights and tips on how the application should be configured to maximize all the benefits of BoostFS.

This article explains how to manage storage capacity on a Data Domain (DD) system when backups are written by other Dell-EMC products such as Avamar or NetWorker. It outlines which system is responsible for data retention, expiration, and deletion, and provides references to product‑specific guidance.

Avamar image backups to Data Domain (DD) fail with avtar errors 10542, 10509, 10630, 8941 due to proxies not in Data Domain Boost (DD Boost) access list; add proxy clients via ddboost access add clients command.

This article serves to assist on issues encountered with failed DDOS login or access.