DD OS

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.

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

NetBackup restores failing due to a changed SIZE_DATA_BUFFERS_DISK to 1048576 (1MB) (or a value that is similar)

Interface groups can be used to control the interfaces used for DD Boost MFR, to direct the replication connection over a specific network, and to use multiple network interfaces with high bandwidth and reliability for failover conditions. All protection system IP types are supported—IPv4 or IPv6, Alias IP/VLAN IP, and LACP/failover aggregation.

Introduced in DDOS 7.5 and DDMC in 7.11, multifactor authentication adds an extra layer of security on the protection system. It requires the security officer and system administrator to enter an RSA SecurID passcode before certain destructive commands or configuration changes are allowed. The Multifactor Authentication panel allows the user to configure, enable, and disable multifactor authentication.

Data Domain - /data/col1/backup MTree is the default MTree that has been created for backward compatibility to older DDOS versions and is not allowed to be deleted.

When using failover bonding, the standby interface has many dropped packets. This is expected since the standby interface is not active.

DDOS can diagnose authentication issues for Active Directory from within the DD System Manager interface.

This article explains how to create a DD Boost Protocol Storage Unit using either UI or CLI.

About interface groups: This feature lets you combine multiple Ethernet links into a group and register only one interface on the protection system with the backup application. The DD Boost Library negotiates with the system to obtain the best interface to send data. Load balancing provides higher physical throughput to the system. Configuring an interface group creates a private network within the system, consisted of the IP addresses designated as a group. Clients are assigned to a single group, and the group interface uses load balancing to improve data transfer performance and increase reliability.

This issue is not caused by Data Mover itself. It occurs due to NFSv4 identity-mapping behavior on the client side.

This article describes the purpose of the Domain Name System (DNS) alert "Unable to communicate with configured DNS" on Data Domain operating system 5.5 and later.

DDBOOST_USER' does not have sufficient access rights is seen from NetWorker side even though DDBOOST user is working fine from DD side and also if you tried to change PW, assign new Storage Unit it encounters same error "DDBOOST_USER' does not have sufficient access rights"

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.

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

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.

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

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.

Upgrading IDPA to 2.7.7 or Griffin (Avamar and Data Domain) causes random backup failures due to rejected connections in Data Domain from Object Existence Check (OEC).

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 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.