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This health check tool is designed to triage common and performance issues reported for DDVE system.
Updated: May 14, 2026
ID: 000200529
Dell EMC Data Domain workaround and mitigation is available before remediation for the Apache Log4j Remote Code Execution Vulnerability that may be exploited by malicious users to compromise the affected system. Dell recommends implementing this remediation as soon as possible in light of the critical severity of the vulnerability.
Updated: May 12, 2026
ID: 000194503
DDOS keeps free space in the DD FS and in the system partitions tightly monitored, so that it alerts the administrator when capacity is about to run out for either the customer data storage or any of the system partitions.
Updated: May 15, 2026
ID: 000203515
This KB describes how to restart (IPL) an IOP on an IBM System i.
Updated: May 15, 2026
ID: 000452931
If the 'Use certificate authentication for REST communication' checkbox is selected, a Data Domain cannot be edited from the Avamar AUI.
Updated: May 15, 2026
ID: 000203336
Data Domain systems may report a nonspecific blocking issue when running a DDOS upgrade precheck. This may be due to a DD Cleaning Cycle running then.
Updated: May 15, 2026
ID: 000203155
In Retention Lock Compliance (RLC) enabled DDs where keeping the proper date and time is critical for the security of data, time changes or gaps are accounted for, and in certain situations cumulative time changes exceed a given threshold, hence an alert gets raised.
Updated: May 15, 2026
ID: 000202756
Data Domain and Data Domain Management Center devices allow for remote access through SSH. Also, if enabled, allow bi-directional file transfers using SSH-based SCP protocol. However, WinSCP does not work even if SCP support is enabled in the Data Domain or Data Domain Management Center.
Updated: May 15, 2026
ID: 000202391
User Interface (UI) is unavailable after upgrading to Data Domain Operating System (DDOS) or PowerProtect DD Management Center (DDMC). Java Development Kit (JDK) checks reject an X.509 certificate from a DD with DDOS 4.7‑5.4, breaking trust.
Updated: May 15, 2026
ID: 000202177
This article provides instructions and information for addressing a disk misconfiguration warning that appears when a 1.92TB SSD is installed in place of a 960GB SSD in supported Data Domain systems.
Updated: May 14, 2026
ID: 000227587
Prediction Enabled Automatic Cleaning is run only when its prediction engine determines whether used capacity exceeds a configured percentage within a configured time.
Updated: May 14, 2026
ID: 000199927
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.
Updated: May 14, 2026
ID: 000198864
PowerProtect DP Series: Protection Storage or Data Domain: Security Officer Account Resolution Path
Updated: May 14, 2026
ID: 000198715
Message "Alert: Security officer user account must be created." received after upgrading IDPA to version 2.7.
Updated: May 13, 2026
ID: 000198128
This article serves as an overview of SOL and what settings are required for each system.
Updated: May 13, 2026
ID: 000197824
Summary: This document details the steps to register/add a Data Domain System to Secure Connect Gateway.
Updated: May 13, 2026
ID: 000197719
Data Domain showing red in the Avamar user interface and or AUI are caused by a few different issues. This is a resolution path that points you toward existing KB articles for these topics.
Updated: May 13, 2026
ID: 000197106
When vault Data Domain fills up, symptoms include high capacity usage, poor deduplication, and expiration failures. The root cause is inadequate capacity planning, improper backup configuration, and unchecked saveset accumulation across DD, Networker, Avamar, and Cyber Recovery.
Updated: May 13, 2026
ID: 000464399
Active Directory (AD) Authentication not working because the global catalog (GC) is disabled in Data Domain.
Updated: May 13, 2026
ID: 000081183
Multiplexed write streams often cause lower compression and is unnecessary with a disk-based backup system.
Updated: May 13, 2026
ID: 000028900
This article describes a known limitation where a Data Domain system fails to join an Active Directory (AD) domain if the AD join account password contains multi-byte characters. A workaround is provided.
Updated: May 13, 2026
ID: 000028763
File systems created before DDOS 7.5.x may panic after upgrading to DDOS 7.10.x or later if mtree replication is configured. The panic message is "ddr/dm/dmbt_iface.c: dmbt_get_entry_inode: 19746: !(ret == DD_ERR_NONE)."
Updated: May 13, 2026
ID: 000215835
Data domain file system (DDFS) may restart with segfault or panic with malloc error during data-movement to Cloud Tier
Updated: May 13, 2026
ID: 000196696
Garbage Clean(GC) process is unavailable during copy phase on system that is configured with Cloud tier on Dell EMC ECS Object Storage and cannot be cancelled. It will also prevent starting GC process on Active Tier.
Updated: May 13, 2026
ID: 000196150
This article describes a condition where the Data Domain Virtual Edition (DDVE) 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.
Updated: May 12, 2026
ID: 000464031
This KB article outlines troubleshooting steps to add Data Domain (DD) to PowerProtect DD Management Center (DDMC).
Updated: May 12, 2026
ID: 000065153
This article explains how support for newly introduced regions can be added for already supported and qualified Cloud Tier providers on Data Domain systems.
Updated: May 12, 2026
ID: 000193955
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.
Updated: May 12, 2026
ID: 000081247
Data Domain Capacity Resolution Path.
Updated: May 12, 2026
ID: 000192662
Intermittent panics when ingesting data using NFSv4 with the default NFS options
Updated: May 12, 2026
ID: 000064152