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Dell EMC Data Domain (PowerProtect DD) Storage Comparison: DD3300, DD6400, DD6900, DD9400 & DD9900

Dell EMC Data Domain storage, now known as PowerProtect DD, is the industry leader in backup, deduplication, and disaster recovery storage. These appliances help enterprises reduce storage costs, speed up backup and recovery, and protect against ransomware.


Save up to 80%: Data Domain Storage and Parts

In this article, we compare Dell EMC Data Domain storage lineup, including DD3300, DD6400, DD6900, DD9400, and DD9900. We’ll cover their features, technical specs, storage capacities, and ideal use cases, helping IT decision-makers find the right solution.


Dell Data Domain Storage Comparison featuring DD3300, DD6400, DD6900, DD9400, and DD9900. Enterprise backup and deduplication solutions from Dell EMC PowerProtect DD. High-performance Dell storage for data protection, ransomware resilience, and cloud integration. Image provided by server-parts.eu. Refurbished.

 

What is Dell EMC Data Domain (PowerProtect DD)?

Dell PowerProtect Data Domain is a purpose-built backup storage appliance designed for high-performance, deduplicated storage. It ensures fast, efficient backups and provides enterprise-grade security, including ransomware protection and cloud integration.


Key Features:

Data Deduplication – Reduces storage requirements by up to 65:1

Fast Backup & Restore – Ingest speeds of up to 94TB/hour (with DD boost)

Scalability – From small businesses to multi-petabyte enterprises

Multi-Cloud Tiering – Native support for AWS, Azure, and Google Cloud

Cyber Resilience – Features like Retention Lock and SecureVault protect against ransomware


 

Dell EMC Data Domain Model Comparison


Quick Comparison Table

Model

Capacity (Usable)

Max Drives

Max Throughput

Best For

DD3300

4TB – 32TB

12

4.2TB/hr and 7.0TB/hr with DD Boost

Small businesses & remote offices

DD6400

8TB – 172TB

16

12.7TB/hr and 27.7TB/hr with DD Boost

Mid-sized businesses

DD6900

24TB – 288TB

24

15TB/hr and 33TB/hr with DD Boost

Growing enterprises

DD9400

48TB – 1.5PB

48

26TB/hr and 57TB/hr with DD Boost

Large enterprises

DD9900

576TB – 1.25EB

96

41TB/hr and 94TB/hr with DD Boost

Multi-petabyte storage environments


 

Dell EMC Data Domain Models in Detail


PowerProtect DD3300 – Entry-Level Backup for SMBs


The DD3300 is designed for small businesses and remote offices. It provides cost-effective backup storage with enterprise-grade deduplication.


Key Specs:
  • Capacity: 4TB – 32TB (usable)

  • Max Backup Throughput: 4.2TB/hr

  • Drives: SAS HDDs (4TB, 8TB, 12TB)

  • Encryption: AES-256

  • Cloud Tiering: AWS, Azure, GCP

  • Best For: SMBs, remote office backups


 

PowerProtect DD6400 – Mid-Range Backup for Growing Businesses


The DD6400 is ideal for mid-sized businesses needing scalable backup storage with higher performance than the DD3300.


Key Specs:

  • Capacity: 8TB – 172TB

  • Max Backup Throughput: 14TB/hr

  • Drives: SAS HDDs (4TB, 8TB)

  • Encryption: AES-256

  • Cloud Tiering: AWS, Azure, GCP

  • Best For: Growing enterprises, mid-sized data centers


 

PowerProtect DD6900 – High-Performance Enterprise Backup


The DD6900 is designed for fast backup and restore speeds with greater scalability.


Key Specs:

  • Capacity: 24TB – 288TB

  • Max Backup Throughput: 33TB/hr

  • Drives: SAS HDDs (4TB, 8TB)

  • Encryption: AES-256

  • Cloud Tiering: AWS, Azure, GCP

  • Best For: Large-scale enterprise backups


 

PowerProtect DD9400 – Large-Scale Backup for Data Centers


The DD9400 is designed for large enterprises that require high-throughput, scalable backup storage.


Key Specs:

  • Capacity: 48TB – 1.5PB

  • Max Backup Throughput: 57TB/hr

  • Drives: SAS HDDs (4TB, 8TB)

  • Encryption: AES-256

  • Cloud Tiering: AWS, Azure, GCP

  • Best For: High-performance backup for large organizations


 

PowerProtect DD9900 – Multi-Petabyte Enterprise Backup


The DD9900 is Dell’s most powerful backup storage, designed for massive data environments.


Key Specs:

  • Capacity: 576TB – 1.25EB

  • Max Backup Throughput: 68TB/hr

  • Drives: SAS HDDs (4TB, 8TB)

  • Encryption: AES-256

  • Cloud Tiering: AWS, Azure, GCP

  • Best For: Large-scale enterprises needing extreme scalability


 

Dell EMC Data Domain Key Technologies


Deduplication – Save Up to 55:1 Storage

Dell PowerProtect DD removes duplicate data before storage, reducing backup size significantly. Example:


  • 100TB of data → Only 2TB stored with deduplication


 

Cloud Tiering – Seamless Backup to AWS, Azure, and GCP

PowerProtect DD supports native cloud tiering, enabling:


  • Offsite backup storage

  • On-demand restores

  • Cost-effective long-term retention


 

Cyber Resilience & Ransomware Protection

  • Retention Lock: Protects backup data from unauthorized changes

  • SecureVault / Data Invulnerability Architecture: Creates air-gapped, immutable backup storage

  • AES-256 Encryption: Ensures data security at rest and in transit


 

Which Dell EMC Data Domain Model is Right for You?

Use Case

Best Model

Small business, remote office

DD3300

Mid-sized company backup

DD6400

Large enterprise backup

DD6900

Data center-scale storage

DD9400

Multi-petabyte environments

DD9900


 

Save up to 80%: Data Domain Storage and Parts



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