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".

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).

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.

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.

This article explains how to reset the data movement "app-managed" policy on Avamar with DDOS 6.0 using the DDOS REST API.

Cloud deployed DDVE performance decrease if there are any errors on object-store/account. In cloud environments DDVE depend on the cloud infrastructure, cause of slowness or latency must be nailed down. This doc offers some starting points for the investigation.

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

Data Domain sends alerts that it is almost full (90-100%). This article helps to analyze the real cause, if there is any issue in deletion of files or the DD is filled up to its limit.

This article provides estimates on scheduling lead time when booking RPS upgrades.

Access detailed installation, upgrade, and maintenance guides for Dell PowerProtect and Data Domain hardware, including models DD6300, DD6900, DD9900, and more

This article explains the procedure to open a Service Request (SR) using the Dell support page. Get help fast for your Dell device. No more waiting on hold. No more tech headaches. Dell makes it simple to fix problems, schedule repairs, or get support—right from your device or our support website.

Data Domain devices change status to "suspect" and a few minutes later, back to "normal."

This KB describe behavior of DDFS disabled due to platform critical condition.

IDPA Protection Storage (Data Domain) system with Cloud tier integrated usually has 3 Capacity Usage metrics, Active Tier Capacity, Cloud Tier Capacity and Total Capacity. Avamar Capacity dashboard displays total capacity on the Data Domain dashboard and not the Active Tier Capacity.

This KB article explains what Multi Stream Restore (MSR) is available starting in DDOS 6.2, and how it works for providing potentially faster restore speeds (and file recalls from cloud) for single large files being read, when the backup application uses a single process or stream to do so.

There are many different reasons why the data domain File system reports that cloud tier profile got disconnected, causing the running data-movement, recalls, or cloud cleaning processes to get interrupted or terminated due to the cloud unit getting into UNAVAILABLE state one of them is receiving an internal 500 server error from ECS.