Data Domain

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

Network File System (NFS) allows a system to share directories and files with others over a network. This article is helpful in verifying whether an NFS export is configured correctly; NFS configuration, mount options, and client configuration. Mounting and Verifying Exports on the NFS Client.

Dell PowerProtect Data Domain remediation is available for multiple security vulnerabilities that could be exploited by malicious users to compromise the affected system.

This article describes what Session Security is on Avamar, how it works, and how to manage it.

Data Domain systems upgraded to DDOS 8.3.1.40 and DDOS 8.6.1.20 stop reporting to DDMC 8.5.0.0 or DDMC 8.6.0.0.

This article explains how to use the GoAV dd check-ssl feature to resolve SSL connectivity issues between Avamar and Data Domain.

This article provides a clear, model‑by‑model breakdown of the recommended BIOS and iDRAC firmware versions for each supported DDOS release across the DD series platforms. It is designed to help you quickly confirm which firmware levels align with your system’s DDOS version, reduce compatibility issues, and ensure that your environment stays stable, secure, and fully supported. Use the tables below to find the right BIOS and iDRAC versions for your specific DD model in seconds.

How to determine which files were recently deleted or expired.

This article defines the diagnostic approach of troubleshooting Virtual Machine (VM) backup or restore performance issues when using the NetWorker VMware Protection (NVP) vProxy solution.

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

Backups to a new Data Domain fail after a root-to-root migration.

When an NFS client mounts an exported DD MTree, it sometimes also shows a separate mount for the MTree's ".snapshot" subdirectory, which the NFS client or system administrator has not manually mounted, this KB explains why and the possible consequences

Dell PowerProtect Data Domain remediation is available for multiple security vulnerabilities that could be exploited by malicious users to compromise the affected system.

This KB article describes how to configure MTree replication using the UI.

This article details the steps required to create an Mtree Replication Context on the CLI.

This article provides estimates on scheduling lead time when booking Remote Proactive Services (RPS) upgrades.

Garbage Clean (GC) process is unavailable during copy phase on system that is configured with Cloud Tier on Dell ECS Object Storage and cannot be cancelled. It also prevents starting GC process on Active Tier.

Direct connect is a network topology where two Data Domain, PowerProtect Data Domain, IDPA, or other data protection systems are connected directly through dedicated interfaces without an intermediate switch or router. This article explains direct-connect networking requirements, common deployment scenarios, known issues, and troubleshooting methods for connectivity, routing, performance, and interface-related failures.

This guide has been created to assist customers on troubleshooting mail server issues.

When a DDOS upgrade is performed on version 8.7 or earlier, the RPM signature check may fail with the following error message:  RPM ".rpm file" signature is invalid.

This article provides download links and status information for current PowerProtect Data Domain Operating System (DDOS) releases, including feature and Long‑Term Support (LTS) versions. It also outlines upgrade considerations, documentation references, and supported platforms.

Feature license mode changes from served to grace after upgrade.

Intel E810 10Gb/25Gb Dual Rate NICs may be unable to establish a 10Gb network connection when used with M14MK SFP transceivers, causing the interface link to remain down while 25Gb connectivity continues to function normally. DDOS 8.2 and later provide a persistent configuration option to address the issue, while earlier DDOS releases require a Dell Support-assisted workaround script.

After upgrading DD OS, network interfaces may fail to establish link if a previously configured static speed setting becomes enforced by newer code. This can result in interfaces advertising only a single speed (for example, 10Gb) instead of the expected supported speeds (for example, 10 or 25Gb), causing a mismatch with the connected switch and preventing link establishment.

This article provides guidance for troubleshooting common BoostFS issues, including connectivity, mount failures, lockbox problems, performance concerns, and compatibility validation. It also outlines recommended checks, log collection locations, and information to gather when investigating BoostFS-related issues.

This article provides a high-level overview of integrating Veritas NetBackup with Dell PowerProtect Data Domain using DDBoost (OST), BasicDisk (NFS/CIFS), VTL, or NDMP storage configurations. Successful deployment requires proper Data Domain preparation, NetBackup configuration, DNS resolution, licensing, and firewall port accessibility between all participating systems.

When the https or "ca trusted-ca" certificate expires on a Data Domain, it causes issues when trying to access the web UI. Generating a new certificate resolves the issue.

Commvault backups stall with errors 'Cannot set file access time' and 'Cannot mark file' when Data Domain retention lock is enabled.

This article describes a condition where the Data Domain filesystem fails to start due to a potential Non-Volatile Random Access Memory (NVRAM) mismatch. It also provides a validated workaround to restore filesystem availability.

This article describes how to troubleshoot memory-related alerts on Dell Data Domain systems, including how to identify a faulty DIMM that requires replacement. It covers common alert codes, root causes of correctable and uncorrectable ECC errors, and step-by-step resolution guidance such as initiating POST-Package Repair (PPR), running diagnostic CLI commands, and performing physical troubleshooting.