Why Study with PlanetCert?
The Latest Questions
Practice questions and exam topics aligned with the current exam objectives.
Detailed Explanations
Go beyond the answer. Master the material with comprehensive learning and professional explanations for every concept.

AI-Powered Insights
Personalized preparation guidance that adapts to your performance and identifies weak spots automatically.
Exam Information
Official specifications published by Dell
Exam Format
Registration
Validity
D-UN-DY-23 Exam Topics and Domains
D-UN-DY-23 is organized into 6 weighted domains. Expect to work with Unisphere, Dell Unity XT, VMware ESXi, CloudIQ, and more.
Dell Unity Platform Concepts, Features, and Architecture
Dell Unity Platform Architecture
- Describe the Dell Unity platform architecture, features, and functions
- Identify architectural components and their roles
- Understand multi-protocol storage capabilities
Dell Unity VSA Software-Defined Storage
- Describe the Dell Unity VSA software defined storage solution
- Understand deployment requirements and limitations
- Compare VSA with physical Unity systems
Dell Unity XT Hardware Components
- Identify the Dell Unity XT hardware components: DPE, SPE, DAE, expansion modules
- Understand component functions and replacement procedures
- Recognize system expansion capabilities
Dell Unity XT and UnityVSA Installation and Service
Unity XT Installation and Initialization
- Install and initialize a Dell Unity XT storage system
- Configure network settings and management interfaces
- Complete initial system setup using configuration wizard
UnityVSA Deployment and Initialization
- Deploy and initialize a Dell UnityVSA system
- Configure virtual infrastructure requirements
- Complete VSA-specific initialization tasks
Service Tasks and Resources
- Perform key service tasks and identify related resources
- Describe the Dell Unity Platform service functions
- Manage system alerts and event logs
- Execute CRU replacement procedures
Dell Unity XT and UnityVSA System Administration
Management Interfaces
- Identify and describe the user interfaces for monitoring and managing the Dell Unity family of storage systems
- Navigate Unisphere effectively
- Use appropriate interface for each management task
Support and System Settings Configuration
- Configure the Dell Unity XT support and basic system settings for system administration
- Set up proactive support features
- Manage user accounts and authentication
Dell Unity XT and UnityVSA Storage Provisioning and Access
Storage Pool Types and Provisioning
- Describe dynamic and traditional storage pools and how they are provisioned
- Describe dynamic pool expansion, considerations for mixing drive sizes and the rebuild process
- Select appropriate pool type for workload requirements
Block Storage Provisioning
- Provision block storage resources
- Configure host access to block storage resources
- Implement multipathing for high availability and performance
File Storage Provisioning
- Provision file storage resources
- Configure NAS client access to SMB and NFS file storage resources
- Implement proper file security and permissions
VMware Datastore Provisioning
- Provision VMware datastore storage
- Configure VMware ESXi hosts to access VMware datastore storage resources
- Implement vVols for VM-granular storage management
Storage Efficiency, Scalability, and Performance Features
FAST Cache Performance Feature
- Describe and configure FAST Cache
- Understand FAST Cache architecture and benefits
- Identify workloads that benefit from FAST Cache
File Level Retention (FLR)
- Describe and configure File Level Retention
- Implement WORM capabilities for compliance
- Configure retention policies
Data Reduction Features
- Describe and configure Data Reduction
- Understand compression and deduplication mechanisms
- Calculate and interpret data reduction ratios
FAST VP Tiering
- Describe and configure FAST VP
- Implement automated storage tiering
- Select appropriate tiering policies for workloads
File System Scalability Features
- Describe the nature and use of UFS64 file system scalability feature and the File System Quotas feature
- Configure and manage file system quotas
- Understand UFS64 vs UFS32 differences
Data Protection and Mobility
Local Mobility Features
- Describe the nature and use of the mobility features Local LUN Move and Local NAS Server mobility
- Execute non-disruptive storage resource moves
- Understand mobility impact on services
Snapshots Data Protection
- Describe the Snapshots data protection feature and how snapshots are created
- Describe how snapshot operations are performed on storage resources
- Implement snapshot-based data protection strategies
Replication Data Protection
- Describe the Replication data protection feature
- Describe how to create synchronous and asynchronous replication sessions for storage resources
- Describe synchronous and asynchronous replication operations for storage resources
- Implement appropriate replication strategy for DR requirements
How do I earn this certification?
Passing D-UN-DY-23 earns the Dell Unity Deploy 2023 certification. It sits in the Infrastructure Solutions track.
- D-PSC-MN-23 - PowerStore Maintenance 2023 Expand to newer Dell storage platforms
- D-PSC-DY-23 - PowerStore Deploy 2023Deploy skills for next-gen storage
- D-PST-DY-23 - PowerStore Deploy 2023Next generation storage platform deployment skills
- D-VXR-DY-23 - VxRail Deploy 2023Complementary HCI deployment skills
- D-DP-DS-23 - Data Protection Design 2023Complementary data protection expertise
Practice with Precision
The PlanetCert Simulator mirrors the real exam environment with authentic questions and timed pressure.
How to study for this exam?
The most effective way to prepare for D-UN-DY-23 is by using the PlanetCert Simulator to practice questions and review detailed explanations.
What's changed on this exam?
- ACTIVE
- Last content update: 2023-02-06
- Announcement date: 2023-02-06
- Unity Operating Environment 5.5.0.0 Latest OE version may include new features for future exam updates • Release date: 2025-02-26
- VMware Cloud Foundation with Unity Validated Integration VMware integration is key exam topic, validation strengthens relevance • Release date: 2024
- PowerStore Migration Tools v4.1 Understanding migration path important for career planning • Release date: 2025
Who should take this exam?
This exam is typically taken by Storage administrators and Implementation engineers.
- Hands-on product experience with Dell Unity systems
- Understanding of storage fundamentals
- Familiarity with SAN and NAS concepts
- VMware ESXi knowledge for datastore provisioning