Database App Agent

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 explains the cause and resolution of alerts related to the Baseboard Management Controller (BMC), also known as iDRAC on Dell PowerEdge-based platforms. The BMC is an embedded controller that monitors system health parameters such as temperature, fan speeds, power status, and voltage. When the BMC becomes unresponsive or fails, the Data Domain system generates an alert.

Data Domain Virtual Edition (DDVE) deployed in Microsoft Azure Cloud requires an operating disk, NVRAM disk, and as many metadata disks as necessary for storing backups. However, initially after deployment and with no storage manually added, a "System" disk appears which is not for DDVE, the operating system, or the NVRAM.

This article explains an implementation detail when ECS is used with Data Domain for Cloud Tier. It addresses potential misunderstandings when reviewing the Data Domain and ECS logs.

When a backup application is configured and integrated with DD Retention Lock (RL), certain backup application and DD RL configurations may lead, in some situations, to backup failures, one of which is described and resolved here. The logs in this KB are for Commvault used as the backup application, but the facts presented are equally applicable to any other backup software which supports DD RL

When upgrading to DDOS 7.6, 7.7 or later releases, in some situations the upgrade may take longer to complete and appear to be stuck at the "phase 4/4 (Finalize 51%)" point.

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).

This Article describes how to implement the Data Domain snapshot feature with NetWorker to provide protection against accidental deletions or data loss.

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.

This article explains Dell guidelines on company administrator assignment.

This article explains how to assign an Initial Company Administrator.

This article explains how to promote Company Administrators.

Cloud tier cleaning will not start a quota limit that the ECS admin controls has been reached

This article provides step-by-step instructions to configure Data Domain Cloud Tier with Amazon AWS S3, including IAM setup, certificate configuration, cloud unit creation, and bucket naming.

This article provides instructions for Customers, Partners, and Internal users to update Data Domain License File Formats (from ".lic" to ".xml" or from ".xml" to ".lic") for license compatibility with the DD OS Version.

This article displays a list of Dell Software Products and related articles on how to obtain the Software Unique ID (SWUID) for each specific product. The SWUID is required for streamlining the processes related to both the Software License Renewal process and opening a Support Case.

PANIC: ddr/repl/lrepl_client.c: mrepl_send_file: 16808: repl ctx x:x: mrepl_send_file: file/filesystem is read-only.

After changing the time zone and rebooting the DD, DDOS generates alerts which show the scheduled cleaning failed to start.

How to determine which files were recently deleted or expired.

This article outlines how to access your Data Domain Transformational Licensing Agreement (TLA) in My Account | Dell Software Licenses.

This article outlines the procedure for performing an offline firmware update on Aries-KP model drives (HUS72604CLAR3000 and HUS72604CLAR4000) from version N9C0 to NE70.

This article describes an issue in Data Domain Operating System (DDOS) version 7.8 that prevents downloading core dumps from the web interface.

This article describes how to migrate AWS Elastic Block Store (EBS) volume from gp2 to gp3 type for Data Domain Virtual Edition (DDVE) appliance deployed in AWS cloud platform.

DDBMA: SQL Cluster Database Restore failing with 'disk resource containing the file is not present in the cluster group'.

Replicated period for log backups for SQL is showing the wrong retention period on the Destination side.

The /ddvar (also known as /ddr/var) filesystem is the primary location that DDOS uses to store logs. This knowledge base article describes the common causes and steps to take to help alleviate or free up space inside /ddvar

A few Backup applications using NFSV4 Client backups to Data Domain receive Remote I/O Errors. Clients cannot resolve the same error.

Some customers may rely on GUI Data management-->Mtree -->'Daily Written' numbers to check their backup size, this is not accurate when there is data-movement on the same mtree as the diagram may show both Active and Cloud tier injestions, hence both backup and data-movement would be counted in resulting to misleading number for backup alone statistics.

How to diagnose a failed or absent Trust Platform Module (TPM) on a Data Domain system.

Attempts to delete a mtree or DDBoost that is empty and the retention-lock (enabled or disabled) fails.