Data Domain Deduplication Storage Systems

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.

This article addresses potential communication issues between PowerProtect Data Manager (error code ADS0005) and Data Domain during discovery jobs, focusing on MTU mismatches.

During a DDOS upgrade on DD3300 systems, the precheck may fail with a blocking error indicating that the DellPTA Agent is not running. This article outlines the steps to resolve the issue by verifying and restarting the necessary services on the ESXi host.

filesys clean status command might show the cleaning finished, however filesys clean watch will show the cleaning still in progress

On DDOS versions 7.10, 7.13, 8.0, 8.1, 8.2, 8.3.0.x Data Domain (DD) systems with drive firmware updates enabled may encounter unexpected, false disk failures. Specifically, two devices per Disk Group (DG) can transition to a failed state due to a RAID module reference count issue in the kernel. This can lead to system instability and potential data availability risks.

Data Domain systems may experience repeated filesystem panics during recipe replication when using PowerProtect Data Manager (PPDM) backups. This occurs due to incorrect handling of zero-length base files created by PPDM’s capacity-optimized workflow.

In DDOS 7.9 or later, users encounter permission errors when accessing filesystem location reports generated using the 'filesys report generate file-location' command with the output-file option. This occurs because the output is saved in a new directory with restrictive permissions.

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

Knowledge base (KB) article that provides steps for troubleshooting Avamar backup failures to Data Domain.

This article identifies the commands and steps required to configure Cloud Tier or otherwise known as Long Term Retention (LTR) on Data Domain systems running Data Domain Operating System (DDOS) 6.0 and later versions.

This KB article has PowerProtect DD current software versions, status, and download links.

The EVT-SPACE-00009 alert indicates that the core dump capability on the Data Domain system is at risk due to excessive space usage in the /ddvar directory. This condition may prevent the system from generating valid core dumps during critical failures.

This article provides links to some of the most referenced Dell Knowledge Base articles related to troubleshooting and diagnosing disk issues.

Data Domain High Availability (HA) can experience drive failures during HA failover due to a known drive firmware issue. Some systems may experience the inability of the file system to startup after a failover or reboot.

When an I/O Module (aka SLIC or PCI card) fails or is removed from a Data Domain (DD), the system generates the Error: EVT-ENVIRONMENT-00029: Event Message: I/O module has failed.

Dell Data Domain Virtual Edition (DDVE) based platforms (for example, DD3300) Alert for a failed, unknown, or predictive failure disk with the Error: EVT-STORAGE-00031 or EVT-STORAGE-00032

This article explains how to address disk temperature alerts on Data Domain appliances with DS60 or ES40 enclosures. The alert indicates that the disk temperature has reached or exceeded the reference threshold.

On Data Domain DD3300 appliances, you may notice one or more disks reported as unknown when running disk state commands, even though no alerts are posted. This behavior is expected and explained in this article.

DDFM getattr: Error: Unsupported info level is thrown by lwio when trying to access a file that contains Alternate Data Streams

Determining the filesystem active tier cleaning schedule and setting the schedule using the data domain web console.

How to Import Externally Signed Certificates on port 3009 from DDOS version 7.12.

The purpose of this document is to provide a concise explanation of the steps required to remove the RLG Mtree.

DDVE deployment over Azure Stack HCI environment failed it does not detect boot disk. This is expected behavior as DDVE does not support the Azure stack HCI yet. It will be a new requirement.

DD3300 The watchdog timer expired

This article discusses when enabling Data Domain retention lock in governance mode on Avamar 19.10 causes VMware image backups to fail due to insufficient privileges.

When attempting to join Active Directory (AD) machines that have been upgraded to Windows 2025, the following error can occur: Failed to join the domain with the following error message: *** ASN.1 failed call to system time library

How to receive Dell Technical Advisories (DTA) and Dell Security Advisories (DSA).

DDBMA: DDBMA cannot detect the new changed SQL hostname.

If the 'Use certificate authentication for REST communication' checkbox is selected, a Data Domain cannot be edited from the Avamar AUI.