Data Domain

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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.

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.

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

Use the iperf tool and DD net iperf command to measure raw network throughput between endpoints, helping diagnose slow or failed backups, restores, or replication by validating NIC-to-NIC bandwidth across the network path.

To provide the detailed usage for the DD Boost connectivity checking tool (ddpconnchk) by using the exact same values from the Backup Application.

The Data Domain Operating System (DDOS) can be upgraded by following the instructions in this KB article.

AIX DDdfc processor devices failover and AIX generic disk devices HA failover do not work.

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.

This article describes how to replace a predictive failure disk on a Data Domain DD3300 appliance.

Descriptions of the various states that a disk drive on a Data Domain system can be in, and the significance of the state.

This article outlines the steps required to resolve a disk that is in an absent state on a Dell Data Domain system. A disk marked as absent prevents the addition of new shelves or expansion of existing storage.

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 outlines the most common environmental and hardware-related causes of disk overheating on Data Domain systems and provides guidance for preventing temperature-related alerts.

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.

On Data Domain DD3300 systems, disk failure alerts reference an enclosure and disk number (for example, Enclosure=1:Disk=18). These identifiers do not directly correspond to the physical slot numbers on the appliance. This article explains how to accurately map the alert information to the correct physical disk for replacement.

Cloud unit does not free space after multiple cleaning cycles.

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

PCM jobs may fail at times with exit code 333, due to limitation of eight simultaneous jobs.

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

Data Domain upgrade precheck fails with this message: "Error in boot_fsck"

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

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