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Exam Information
Official specifications published by Dell
Exam Format
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Skills this practice test covers
- Check rack space, power and airflow requirements before PowerStore arrives on site.
- Cable front-end ports to hosts, back-end ports to expansion enclosures, and power to PDUs.
- Configure Ethernet switches and PowerStore networks, then run the initial configuration.
- Replace CRUs with the right power control steps and ESD handling.
- Run a non-disruptive upgrade of PowerStoreOS after the pre-upgrade health checks pass.
- Find a failed part with fault LEDs, PowerStore Manager alerts, PSTCLI and service scripts.
Explore related topics
DES-1241 exam content
7 domains · 28 topics · 218 questions
PowerStore Concepts and Features6%16 questions
This small domain sets the base: PowerStore use cases, models and configurations, and the hardware architecture. It also asks where to find PowerStore reference documentation, which the procedures in later domains depend on.
Skills tested
- Match a PowerStore model and configuration to a use case.
- Identify the main hardware components, such as nodes, embedded modules, base enclosures and expansion enclosures.
- Find the right PowerStore guide on the Dell Support website.
Questions by topic
- PowerStore System and Use Cases7
- Accessing PowerStore Reference Documentation4
- PowerStore System Configuration and Models4
- PowerStore Architecture and Hardware Components1
PowerStore Installation7%14 questions
Installation starts before the system arrives. Candidates plan rack space, power and environmental conditions, then unpack the hardware and mount it in the rack.
Skills tested
- Follow the PowerStore installation process from site planning to the first power-on.
- Check power and environmental requirements, including airflow and humidity.
- Unpack and rack the base enclosure and any expansion enclosures safely.
Questions by topic
- PowerStore Racking Considerations9
- Unpacking and Racking Tasks4
- Power and Environmental Requirements1
PowerStore Cabling10%25 questions
Three groups of cables are covered: front-end cables to hosts and switches, back-end cables to expansion enclosures, and power cables. Redundant paths matter in each group.
Skills tested
- Cable front-end ports for iSCSI or Fibre Channel host access.
- Connect expansion enclosures to the base enclosure with back-end cables.
- Run power cables so that each enclosure keeps power if one PDU fails.
Questions by topic
- Back-End Cabling8
- Front-End Cabling12
- Power Cabling5
PowerStore Implementation20%54 questions
After cabling, the array joins the network. Candidates prepare the Ethernet switches, configure the PowerStore networks, complete the initial configuration and manage licensing.
Skills tested
- Describe the PowerStore networks, such as the management network and the storage network.
- Configure switch ports with link aggregation (LACP), VLANs and jumbo frames.
- Complete the initial configuration, including DNS and NTP settings.
- Install and activate the PowerStore license.
Questions by topic
- PowerStore Networks18
- Ethernet Switching, Network Requirements, and Configuration Options24
- Initial Configuration Steps9
- Ethernet Switching Configuration Process3
PowerStore Maintenance15%28 questions
Maintenance means replacing parts without harming the system or its data. Candidates control power for each procedure, follow ESD handling, tell CRUs from FRUs and complete the replacement steps.
Skills tested
- Shut down a node or the whole system gracefully before maintenance.
- Protect components with anti-static equipment and grounding.
- Separate customer replaceable parts, such as drives and fans, from service-only parts such as nodes.
- Verify a replaced component through its LEDs and its status in PowerStore Manager.
Questions by topic
- Replacement Procedures14
- ESD Handling Procedures3
- PowerStore CRUs and FRUs6
- Power Control for Maintenance Procedures5
Software Upgrades12%30 questions
This domain compares the types of software upgrade and walks through a non-disruptive upgrade step by step. It also covers hardware upgrades, such as adding drives or expansion enclosures.
Skills tested
- Tell a non-disruptive upgrade from a disruptive one, and a patch release from a major version upgrade.
- Run the pre-upgrade health checks and resolve what they report.
- Follow the NDU operational steps, including the node failover during the upgrade.
- Plan hardware upgrades such as drive additions and new expansion enclosures.
Questions by topic
- Performing Software Non-Disruptive Upgrade8
- Hardware Upgrades9
- NDU Operational Steps13
Troubleshooting30%51 questions
The largest domain is about finding faults. Candidates read hardware fault LEDs, follow PowerStore Manager alerts, run PSTCLI commands and service scripts, use the node service port, and collect data for Dell support.
Skills tested
- Read fault LED patterns to locate the failed component.
- Work from a PowerStore Manager alert to its cause and fix.
- Run PSTCLI commands and service scripts to check system health.
- Reach a node through its service port when it cannot be managed over the network.
- Collect support data and upload it to Dell support.
Questions by topic
- Troubleshooting with PowerStore Service Scripts11
- Troubleshooting with PowerStore Node Service Port9
- Performing PowerStore Data Collection4
- PowerStore Hardware Fault LEDs4
- Troubleshooting with PSTCLI12
- Troubleshooting with PowerStore Manager Alerts8
- Troubleshooting with LEDs3
Requirements
- Required: a Dell Associate - Information Storage and Management certification (Version 2.0 to 5.0), or another option listed in Dell's CertTracker.
- Recommended: hands-on experience with rack installation, cabling and data center work.
- Recommended: knowledge of storage array concepts and networking fundamentals.
About the DES-1241 exam
DES-1241 tests the on-site work of a PowerStore platform engineer: installing a Dell PowerStore storage array, cabling it, upgrading it and finding its faults. It is the qualifying exam for Dell's Specialist - Platform Engineer, PowerStore track. Candidates also need a Dell Associate - Information Storage and Management certification, and together the two earn Dell Certified Specialist - Platform Engineer, PowerStore. Troubleshooting is the largest of its seven domains.
The PlanetCert practice test gives the most questions to troubleshooting, then to implementation tasks such as LACP, VLANs and jumbo frames. Its explanations walk through the order of each procedure, such as the power control steps before a part comes out and the health checks before a non-disruptive upgrade. Study Mode suits the LED and alert questions, where the answer depends on reading one light or message closely. Brainy AI Assistant can explain a fault LED pattern or sort a part into CRU or FRU.
How to earn the certification
- Earns
- Dell Certified Specialist - Platform Engineer, PowerStoreSpecialist
How to prepare for DES-1241
- 1
Study Dell's install and service guides
Dell's PowerStore Installation and Service Guide and its Networking Guide for Initial Deployment describe the racking, cabling, networking and replacement steps that the exam topics list. Read them domain by domain.
- 2
Sketch the cabling on paper first
Draw front-end, back-end and power cabling for a base enclosure with one expansion enclosure. Mark each redundant path and check which single failure the layout survives.
- 3
List every NDU step in order
Write out the non-disruptive upgrade, from the package upload and pre-upgrade health checks to post-upgrade validation. Note what each node does at every step and how hosts keep their access.
- 4
Give troubleshooting the most hours
Troubleshooting is the largest domain. Practise moving from a fault LED or a PowerStore Manager alert to the PSTCLI command or service script that confirms the cause, then to the data collection Dell support needs.
- 5
Check readiness in Timed Mode
Take the DES-1241 practice test in Timed Mode. For every missed LED, alert or upgrade question, ask Brainy AI Assistant to explain the right step, then try that topic again in Study Mode.
Start a timed DES-1241run
Dell recommends the on-demand course PowerStore Installation and Maintenance for partners. Dell employees take a set of on-demand courses instead, from PowerStore Concepts and Features to PowerStore Upgrades.
Who DES-1241 is for
- Field service engineers who install and repair PowerStore arrays at customer sites.
- Data center technicians who rack, cable and power new storage hardware.
- Engineers at Dell partners who install PowerStore systems for customers.
- Dell engineers who keep installed PowerStore systems patched and repaired.
Typical job titles: Platform engineer · Field service engineer · Storage installation engineer · Data center technician · Data center operations engineer
DES-1241 glossary
18 terms from the exam objectives and the vendor's official material, each defined in a sentence.
- Base enclosures
- The main PowerStore enclosures, which house the nodes and the first drives.
- CRU
- Customer replaceable unit: a part, such as a drive, fan, power supply or SFP module, that a customer may replace.
- Disruptive upgrades
- Upgrades that need system downtime, so hosts lose access to storage while the upgrade runs.
- ESD handling procedures
- Safe handling steps, such as grounding and anti-static equipment, that protect parts from electrostatic discharge.
- Expansion enclosures
- Extra drive enclosures that connect to the base enclosure through back-end cabling to add capacity.
- FRU
- Field replaceable unit: a service-only part, such as a node, an embedded module or a backplane, that Dell service replaces.
- Hardware fault LEDs
- Status lights on PowerStore hardware whose color and pattern show whether a component is healthy or has failed.
- Hot-swap procedures
- Steps for replacing a part while the system stays powered on and keeps serving hosts.
- Jumbo frames
- Ethernet frames larger than the standard size, set through the MTU to cut overhead on storage traffic. Every device on the path needs the same MTU.
- Link aggregation (LACP)
- Bundling several Ethernet ports into one logical link with the Link Aggregation Control Protocol, for redundancy and more bandwidth.
- Management network
- The PowerStore network for management traffic, such as PowerStore Manager, kept apart from the storage and replication networks.
- Node service port
- A port on each PowerStore node that gives a service engineer direct access to that node, for example when it is cut off from the network.
- Non-disruptive upgrades (NDU)
- Rolling software upgrades in which the nodes fail over to each other, so hosts keep access to storage with no downtime.
- Patch releases
- Small PowerStoreOS releases with minor fixes, as opposed to major version upgrades.
- PowerStore Manager
- The web-based management interface for PowerStore, used for setup, monitoring, alerts and many maintenance tasks.
- PowerStoreOS
- The operating system that runs on PowerStore appliances. A software upgrade installs a new PowerStoreOS version.
- PSTCLI
- The PowerStore command-line interface, which runs management and troubleshooting commands from a terminal.
- Service scripts
- Built-in diagnostic and health check scripts that service engineers run to examine a PowerStore system.