Data Domain

This health check tool is designed to triage common and performance issues reported for DDVE system.

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.

Replacing, reimaging, or changing credentials on a Data Domain causes PowerProtect Data Manager agent backups to fail. Errors such as ABA0002, ABA0008, ABF0005, ABG0004, or PKIX (Public-Key Infrastructure (X.509)) path building failed due to stale credentials, mismatched storage units, and certificate validation issues.

Renamed or deleted PowerScale shares are still visible within the PowerProtect Data Manager user interface.

FLR fails saying that it is not available for datastores () using transport mode 'Hotadd'

This KB describes how to restart (IPL) an IOP on an IBM System i.

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 how to identify and resolve memory-related errors on Dell Data Domain systems.

This article provides best practices to safely shut down or reboot Data Domain systems using the command-line interface (CLI) or user interface (UI). These practices help to ensure data integrity and system stability.

This guide details compatibility of MTree, Managed File, directory, collection, and delta replication across Data Domain Operating System (DDOS) version families, with notes on limitations.

This knowledge base article explains what happens when an unexpected file system restart occurs, the potential alerts encountered and what information to capture for triage purposes.

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.

Data Domain may show amber LED and Power Supply Unit (PSU) alert EVT‑ENVIRONMENT‑00026 after an Uninterruptible Power Supply (UPS) Power Distribution Unit (PDU) replacement or power‑maintenance. Cached indictments and iDRAC log cause this, not hardware failure.

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.

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.

This article explains why a disk may appear as "Unknown" in a Data Domain system and provides steps to identify and resolve the issue.

This article explains how disk reconstruction works on Data Domain systems and how to monitor reconstruction progress after a disk failure.

This article provides frequently asked questions and solutions for a DDOS upgrade.

This article describes how to resolve the condition where a disk drive is in a failed, absent, or powered off state.

On intel network cards changing virtual bond to another bonding type while switch is still LACP triggers a possible driver bonding issue and disables all interfaces on all cards.

This article consists of an overview of Data Domain retention lock (RL) functionality and explains the differences between configuration and utilization of governance and compliance mode.

AWS is changing their server certificates from S3 to certificates issued by Amazon Trust Services CA. This change impacts Data Domain systems that are configured with Cloud Tier and Data Domain Virtual Edition (DDVE) deployed on AWS Cloud platform with Active Tier on Object Storage (ATOS).

After upgrading the Data Domain Operating System (DDOS) from a pre-8.7 release to DDOS 8.7 or later, MTree replication contexts may fail to synchronize. This failure results in continuous restarting due to changes in SSL handling.

After upgrading to DD OS 8.6, the system repeatedly posts "New DD OS version available for upgrade" alerts. The alert logic reposts when release metadata changes which are a side effect of the one‑click upgrade.

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

After upgrading Data Domain OS to 8.6, the mail server began logging warning messages daily related to unexpected HTTP traffic coming from the Data Domain system.

This Article describes a specific circumstance where space reclamation may not proceed despite a lack of media database records for the files in question.

This article answers common questions about Data Domain licensing, including electronic licensing (ELMS), license management, and deployment using Software License Central.

When RAID cannot fail a disk as requested by the Storage Subsystem Monitor (SSM), the Data Domain system generates an EVT-STORAGE-00026 alert. This alert includes FailureReason code and BlockingReason codes that indicate why the disk failure request did not succeed. Usually, the condition is transient — the system automatically retries and successfully fails the disk after approximately 24 hours. This article describes the symptoms, explains the root cause, and lists all associated reason codes.

Data Domain sysadmin/SO password resets no longer require Support intervention when running DDOS (7.10.1.40 or newer). A password reset token is sent to the registered email address. Copy the token to a supported USB drive, insert it into the system, and log in as sysadmin or security officer to reset the password.