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.

This article describes the cause of and resolution for the alert "EVT-STORAGE-00025: Current cache tier size is less than what the system is licensed for".

Starting with Data Domain releases from April 2026, updates have been introduced to iDRAC operator user behavior as part of Dell’s ongoing security enhancements. These updates help protect your system by preventing prolonged or unauthorized privileged access, while continuing to ensure full supportability. When maintenance that requires elevated access is necessary, Dell Support will follow established and approved procedures and will return the system to a compliant and secure state once the work is complete.

Simple Network Management Protocol (SNMP) traps fail to send if the SNMP trap host configuration includes a port number. A defect in IP address validation introduced in DDOS 8.3 and 8.1 and 7.10.1.40 causes this issue

The Data Domain System Manager (GUI) may display replication status incorrectly and report the error "please check if proxy is reachable from Management Host." This can happen when configuring a replication pair or when entering the replication tab.

The Data Domain command line (CLI) or web UI can become unresponsive due to issues with the system management service (SMS).

This article answers the most frequent questions regarding compression. Data Domains are independent of data type. Data Domain uses compression algorithms that back up only unique data - duplicated patterns or multiple backups are stored only once.

When Retention Lock Compliance (RLC) is configured on a Data Domain system, the active node reboots while the standby node remains unchanged, causing a High Availability (HA) error on the standby node.

Applying an ELMS License to a DD or DDVE may be performed using the DD System Manager or DD CLI.

This article explains how to delete Data Domain mtrees.

This knowledge article provides a collection of frequently asked questions (FAQ) about Data Domain Data At Rest Encryption (DARE) in a consolidated location for ease of reference.

This article describes known scenarios which might lead to increased metadata usage while using a Data Domain Virtual Edition (DDVE) writing to an Object Store.

When deploying a PowerProtect Data Domain Virtual Edition (DDVE) on an NFS datastore, it can only be thin provisioned.

How to reset or regenerate certificates due to expiration (or misconfiguration).

All connectivity from the Data Domain to the Secure Connect Gateway is working, but CloudIQ is not receiving data.

This article explains how to use the Data Domain CLI to dump the file and directory listings for individual MTrees or for the file system (FS) as a whole.

This Guide is based on steps from DDOS code 7.9.

Pre-compressed bytes remaining can become inflated during MTree replication initialization.

This KB describe the steps on how to decrypt the encryption at rest data on a Data Domain file system.

This article provides tables of supported stream counts for Data Domain OS (DDOS) 6.0 by Data Domain Model.

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

The DD File System (DDFS) automatically disables itself as a safeguard when the system sees an environmental condition is not good and it sees a critical alert on enclosure 1

This article lists all the requirements and provides a step-by-step procedure to configure DD Boost Fibre Channel (DFC) disk type devices in AIX with MultiPath I/O (MPIO).

The purpose of this guide is to detail the procedure of updating firmware on the DD3300.

DB2 schedule backup failing with Vendor error: rc = 25 returned from function sqluvput due DD to timeout

This document discusses hardware monitoring performed on DD3300 with hardware monitoring processes and ensure that alerts are reported on DD3300.

This article provides general best practice steps to prepare NetWorker for a Data Domain IP address change.

The DD3300 model is based on the Dell PowerEdge R740xd server platform. This article is intended to distinguish between the supported and unsupported options provided on this platform.

This article describes how to copy files to and from /ddvar using Secure Copy Protocol (SCP). It provides examples for workstations running both Linux (through SCP command) and Windows (by using powershell or pscp.exe).

The primary focus for this article is to troubleshoot an interface down, multiple interfaces down, an intermittent interface, and a bad network card. Replacing parts should be the last step in resolving interface down issues. Troubleshooting these issues first such as reviewing the switch side, may lead to the quickest resolution.