D-VXR-DS-00
Dell VxRail Design
D-VXR-DS-00 Exam Guide: What to Study and How to Plan Your Preparation
D-VXR-DS-00 appears to require preparation around VMware virtual infrastructure operations, particularly distributed-switch administration and vSAN fault handling, but the supplied official research does not publish an exam blueprint, candidate profile, scoring model, prerequisites, or delivery specification for this code. This guide therefore separates verified platform knowledge from planning advice. It helps administrators decide whether their current experience is sufficient, which technical workflows to practise first, and which exam-registration details must be confirmed before scheduling.
What can be verified about D-VXR-DS-00
The supplied official sources do not identify D-VXR-DS-00 by name or provide an exam page for it. They do, however, provide Broadcom technical guidance on vSphere Distributed Switch upgrades and vSAN physical-disk alarms, plus Certiport guidance for exam-delivery systems. Treat the technical subjects in this guide as evidence-based preparation areas, not as a confirmed exam blueprint.
Before paying for or scheduling the examination, locate the current product listing through the relevant Broadcom or Certiport channel and confirm the exact exam title, associated certification, prerequisites, registration route, delivery option, language availability, duration, scoring rules, and policy requirements. None of those exam-specific details is established by the supplied snapshot.
Who should use this preparation plan
This plan best suits infrastructure administrators, virtualization engineers, and support personnel who already work with VMware vCenter Server, ESXi, vSphere Distributed Switches, or vSAN environments. It is most useful for a candidate who needs to convert operational experience into structured decisions rather than memorise isolated interface labels.
A newcomer can still use the guide as a syllabus-building tool, but should first learn the relationships among vCenter Server, ESXi hosts, distributed switches, port groups, clusters, DRS, and vSAN disk groups. The official material assumes an operational environment in which compatibility, change control, backup, network availability, and fault diagnosis matter.
What skills the available evidence points toward
The available evidence supports preparation in two practical skill families: planning and executing a vSphere Distributed Switch upgrade, and diagnosing a vSAN physical-disk alarm. The sources do not state that these are official D-VXR-DS-00 domains, so use them as a defensible study framework until an authoritative exam blueprint confirms or changes the scope.
Distributed-switch lifecycle decisions
You should be able to reason through compatibility before changing a VDS. The Broadcom guidance says to verify that vCenter Server supports the target VDS version and that all connected ESXi hosts run a compatible version. It lists these supported relationships: vCenter Server 9.0 with VDS 9.0/8.0/7.0 and ESX 9.0; vCenter Server 8.0 with VDS 8.0/7.0/6.6 and ESXi 8.0; and vCenter Server 7.0 with VDS 7.0/6.6/6.5 and ESXi 7.0. The same source says VDS version 6.5 can be upgraded to 6.6 or later. Source: https://knowledge.broadcom.com/external/article/407905/vsphere-distributed-switch-vds-upgrade-b.html
The operational skill is not simply recognising a version table. It is identifying which dependency blocks the change, documenting the current state, selecting a safe order of work, and understanding whether the change can be reversed. The guidance explicitly states that a VDS upgrade is irreversible, which makes pre-change validation and configuration export essential.
vSAN physical-disk fault reasoning
The Broadcom vSAN article describes a vSAN physical disk alarm named “Operation” and an unhealthy disk-group entry whose health status is shown as “--”. One stated cause is that a disk has gone completely offline and the ESXi host can no longer communicate with it. Another is a stale disk entry remaining in vSAN CMMDS after a failed disk was replaced without first removing it from the disk group, or after a disk group was not removed where deduplication or a failed cache-tier disk was involved. Source: https://knowledge.broadcom.com/external/article/388698/alarm-triggered-in-vcenter-server-vsan-p.html
Preparation should focus on distinguishing a genuinely inaccessible device from stale metadata. The article notes that the disk UUID may be visible in the Skyline Health check under the Operation Health alert. That detail is useful because it connects an alarm to an identifiable device record rather than encouraging blind replacement or deletion.
How to study the VDS upgrade workflow
Study the upgrade as a controlled change sequence: establish compatibility, export the configuration, control cluster activity, upgrade one switch, validate the result, and restore normal operations. Rehearsing that sequence will help you answer scenario questions in the right order and will also reduce the risk of treating a technically valid step as safe when its prerequisite is missing.
1. Establish the supported path
Start with an inventory of the vCenter Server version, each ESXi host connected to the VDS, the current VDS version, and the target VDS version. Compare the inventory with the compatibility information in the Broadcom article. Do not assume that upgrading vCenter Server automatically makes every connected host ready for the target switch version.
A useful study exercise is to create several decision tables using only documented combinations. Mark each combination as ready for further planning, blocked by a version mismatch, or requiring additional documentation. The purpose is to practise dependency analysis, not to memorise a product matrix without knowing which component supplies each constraint.
2. Preserve the current configuration
The documented export path is Networking > Distributed Switch > Actions > Export Configuration. Select “Distributed switch and all port groups” when exporting the current VDS configuration. Record what was exported, where it was stored, and who approved the backup. Source: https://knowledge.broadcom.com/external/article/407905/vsphere-distributed-switch-vds-upgrade-b.html
In a lab or written exercise, explain why the export is performed before the upgrade. Because the source says the upgrade is irreversible, the configuration export is part of the recovery and documentation plan, not an optional convenience. Also practise checking that the export corresponds to the intended switch and includes the required port groups.
3. Control cluster behaviour
The Broadcom guidance recommends setting DRS to Manual mode for all clusters sharing the VDS so that unexpected vMotion operations do not occur during the change. This is a coordination step: it limits unrelated cluster movement while the network control plane is being modified. Source: https://knowledge.broadcom.com/external/article/407905/vsphere-distributed-switch-vds-upgrade-b.html
When studying, connect each action to its operational reason. A strong answer should identify the shared VDS, identify the affected clusters, change DRS before execution, and include a post-change step to return DRS to its original settings. Do not leave the temporary setting in place simply because the switch upgrade completed.
4. Select the execution order
The documented procedure says to upgrade one VDS at a time. Where hosts have separate management and workload switches, it recommends upgrading the workload VDS first to maintain management isolation. The target-version upgrade is performed in the vSphere Client. Source: https://knowledge.broadcom.com/external/article/407905/vsphere-distributed-switch-vds-upgrade-b.html
Turn this into a sequencing drill. Given a management VDS and a workload VDS, identify which should be upgraded first and explain what isolation is being protected. Then add the constraint that multiple VDS objects exist and select only one for the initial change. This approach tests prioritisation and blast-radius control rather than menu recall.
5. Validate and close the change
After the upgrade, return DRS to its original settings and validate network functionality. The source also warns that the upgrade is irreversible. Validation should therefore be treated as a required closeout activity: confirm host and switch state, verify the relevant network paths and port groups, review alarms or synchronization problems, and document the final version. Source: https://knowledge.broadcom.com/external/article/407905/vsphere-distributed-switch-vds-upgrade-b.html
Do not describe “no visible error” as sufficient validation. Build a checklist that covers management access, workload connectivity, host participation, and any service that depends on the affected port groups. The exact checks will vary by environment, so keep the checklist tied to the services and network topology you have documented before the change.
How to reason about service interruption
The current VDS version changes the risk discussion. Broadcom states that a brief service interruption may occur when the current VDS version is 6.5 and it is upgraded to a later version. For VDS version 6.6 or higher, the source says the upgrade to a newer version can be performed without service interruption. These statements describe the documented upgrade guidance, not a promise about every surrounding dependency. Source: https://knowledge.broadcom.com/external/article/407905/vsphere-distributed-switch-vds-upgrade-b.html
Build the maintenance decision from the starting state
First identify the current VDS version. If it is 6.5, plan for the possibility of a brief interruption and ensure the approved maintenance window reflects that risk. If it is 6.6 or higher, use the documented no-service-interruption guidance as an input, while still planning validation and fallback procedures for the broader environment.
A common preparation mistake is to discuss only the target version. Scenario reasoning begins with the current version, then checks vCenter Server and ESXi compatibility, topology, management isolation, DRS behaviour, and the irreversibility of the change.
Use the source wording carefully
Do not turn the no-service-interruption statement into an absolute guarantee for every workload. The source is specifically describing the VDS upgrade condition. Other changes, unsupported combinations, host issues, or dependent services can create separate risks. In an exam response, distinguish the documented VDS behaviour from your operational recommendation to schedule, communicate, and validate the change.
How to study vSAN disk-alarm troubleshooting
Approach the vSAN alarm as an evidence chain: identify the alert and affected disk, determine whether the device is offline or represented by stale metadata, apply the appropriate removal or replacement workflow, and recheck health. The official article gives the causes and directs readers to related procedures; it does not justify improvising destructive commands.
Start with the health evidence
The reported symptom is a vSAN physical disk alarm named “Operation”, with the disk-group entry under Disk Management showing an unhealthy state and health status “--”. Review the Skyline Health check and locate the disk UUID when it is available. This provides a concrete identifier for subsequent investigation. Source: https://knowledge.broadcom.com/external/article/388698/alarm-triggered-in-vcenter-server-vsan-p.html
In your notes, separate observed evidence from interpretation. For example, record the alarm text, disk-group state, host, UUID, and replacement history before deciding whether the disk is offline or stale. This habit prevents a recent hardware replacement from being mistaken for a new physical failure.
Choose removal or replacement carefully
The article recommends removing a failed disk from vSAN if it cannot be replaced immediately, because retaining a faulty disk can, in rare cases, negatively affect the performance of the entire vSAN cluster. It also explains that replacement can leave an absent disk entry behind when the old device was not properly removed first. Source: https://knowledge.broadcom.com/external/article/388698/alarm-triggered-in-vcenter-server-vsan-p.html
Study the decision points rather than memorising a single remedy. Ask whether the disk is still communicating, whether it was already replaced, whether the disk group or cache tier is involved, and whether the stale UUID remains in Skyline Health. The source points to additional Broadcom procedures for troubleshooting OSA disk issues and for removing an absent disk when the normal state does not clear.
Avoid the dangerous shortcut
Do not jump directly to deleting a disk group or issuing an unverified command because an alarm appears. The documented causes include both hardware communication failure and stale vSAN metadata, and those cases require different investigation. A candidate who can explain why the UUID, replacement history, disk-group role, and current health state matter will produce a safer operational answer than one who recommends the same action for every alarm.
A practical four-stage study roadmap
Use a staged plan that moves from terminology to decisions and then to timed scenario practice. The roadmap below is a recommendation, not an official training schedule or an indication of exam duration. Adjust the pace to your prior VMware experience and stop to verify any exam-specific scope against the current official listing.
Stage one: establish the knowledge map
List the components and relationships you need to explain without notes: vCenter Server, ESXi, VDS versions, distributed port groups, clusters, DRS, vSAN disk groups, physical disks, Skyline Health, and disk UUIDs. For each item, write its role in one sentence and identify which source supports the relevant behaviour.
At this stage, do not start with flashcards. Draw the dependency chain for a VDS upgrade and the evidence chain for a vSAN disk alarm. The diagrams expose missing relationships quickly, especially the difference between a switch-version prerequisite and a post-upgrade validation step.
Stage two: convert documentation into runbooks
Write two short runbooks in your own words. The first should cover VDS compatibility, export, DRS Manual mode, one-switch-at-a-time execution, workload-before-management ordering where applicable, vSphere Client execution, validation, and DRS restoration. The second should cover the vSAN alarm, disk identification, offline-versus-stale analysis, safe removal considerations, replacement history, and health revalidation.
Keep the runbooks bounded by the evidence. Do not add unsupported commands, exact maintenance timings, exam claims, or recovery promises. Where the source refers to another procedure, mark the step as “consult the linked Broadcom procedure” rather than filling the gap with guesswork.
Stage three: practise variations
Create scenario variations that change one fact at a time. Change the current VDS version from 6.5 to 6.6 or higher and explain how the interruption assessment changes. Change the topology so that management and workload traffic use separate switches and explain the recommended order. Change the vSAN case from an offline disk to a replaced disk with a stale UUID and explain why the investigation changes.
For every scenario, answer four questions: what is known, what must be verified, what action is supported, and what must be validated afterward. This format prevents premature action and mirrors the reasoning required in production troubleshooting.
Stage four: test readiness and close research gaps
Use closed-book prompts to reproduce the compatibility relationships and operational sequence, then use open-book review to correct omissions. Your final readiness check should include a list of exam facts still requiring confirmation: official title, certification relationship, blueprint, objectives, registration process, delivery method, policies, scoring, and any prerequisites.
If the official exam page differs from the technical topics in this guide, follow the current official blueprint. The supplied Certiport material is a delivery-support index, not evidence that D-VXR-DS-00 uses a particular delivery system.
Common preparation mistakes to avoid
Most avoidable errors come from confusing a technically possible action with a properly controlled change. Prepare to explain prerequisites, affected scope, evidence, and validation instead of memorising an isolated click path.
Treating an unofficial topic list as the blueprint
The supplied research does not publish D-VXR-DS-00 objectives or domain weights. Do not label the VDS and vSAN subjects as confirmed exam domains, and do not invent percentages. Use the Broadcom articles as technical study evidence until the current official exam documentation supplies the authoritative scope.
Ignoring the starting VDS version
A candidate who says only “upgrade the VDS” has skipped the fact that VDS 6.5 may involve a brief service interruption, while the source describes VDS 6.6 or higher differently. Always identify the current version before deciding how to plan the change.
Forgetting irreversibility
The Broadcom guidance states that the upgrade is irreversible. Failing to export the distributed switch and all port groups before execution is therefore a serious planning omission. Make the backup and its storage location explicit in your runbook.
Leaving DRS in a temporary state
Setting DRS to Manual mode is not the end of the procedure. The documented post-upgrade action is to return DRS to its original settings. Include both the pre-change state and the restoration step in practice scenarios.
Replacing hardware without checking stale records
A replaced disk can leave a stale entry in vSAN CMMDS, especially where the old disk was not removed correctly. Confirm the UUID and replacement history before concluding that the alarm represents a second physical failure.
Assuming the delivery platform from a general support page
Certiport’s Quick Reference Guides page describes Compass, Compass Cloud, Exams from Home, and related support materials for various exam programs. It does not, in the supplied facts, associate D-VXR-DS-00 with one of those systems. Confirm the actual delivery instructions for this exam before making equipment or scheduling decisions. Source: https://certiport.pearsonvue.com/Support/Quick-reference-guides.aspx
How to use official sources without losing study time
Use the Broadcom knowledge articles for technical procedures and the Certiport page only for delivery-support orientation. Return to the official pages before scheduling because support content can change, and Certiport specifically advises returning to its page and clearing the browser cache whenever a guide is accessed to ensure the latest version is displayed.
Create a source-controlled notes page
For each study claim, record the claim, the source URL, the product context, and whether it is a prerequisite, execution step, risk statement, or troubleshooting clue. This prevents a vSAN symptom from being accidentally applied to a VDS upgrade and makes later updates easier.
Follow linked documentation for omitted procedures
The VDS article refers readers to documentation for version compatibility, features, and upgrade steps, and lists related articles for synchronization and packet-drop issues. The vSAN article likewise points to procedures for troubleshooting OSA disk issues and removing an absent disk. Follow those links when your lab or official blueprint requires deeper implementation detail; do not invent missing steps from memory.
Check registration information separately
Before booking, verify the exam’s current listing, candidate policies, identification requirements, delivery option, system requirements, rescheduling rules, and any certification prerequisites through the official registration or program channel. The supplied sources do not establish those D-VXR-DS-00-specific details, so they should remain open decisions rather than assumptions in your study plan.
What to do next
Begin by locating the authoritative D-VXR-DS-00 listing and capturing its current objectives and registration requirements. Then build a lab or paper exercise around one VDS upgrade decision and one vSAN disk-alarm investigation. Mark every topic as confirmed by the exam blueprint, supported by platform documentation, or still requiring verification.
If you already administer vSphere
Start with the scenario drills. Explain why each VDS prerequisite exists, how the upgrade order protects management access, and how you would distinguish an offline vSAN disk from stale metadata. Your main gap is likely exam-scope alignment rather than basic terminology, so obtain the official objectives before spending time on unrelated product features.
If your experience is mainly theoretical
Build the component map first, then work through the runbooks in a nonproduction lab or controlled simulation. Concentrate on state changes and evidence: versions, exported configuration, DRS mode, switch order, disk UUID, disk-group health, and post-change validation. Avoid attempting production remediation without the permissions, change approval, and documented procedure required by your environment.
If you are ready to schedule
Schedule only after confirming the current exam-specific delivery and policy details from the official channel. Keep the final study session focused on decision sequences and source-backed exceptions, particularly the VDS 6.5 interruption note, the compatibility prerequisites, the irreversible-upgrade warning, and the vSAN stale-disk possibility.
Conclusion
The strongest preparation decision is to separate confirmed exam information from platform evidence. The supplied research supports a focused operational syllabus: VDS compatibility and upgrade control, DRS coordination, configuration export, network validation, and vSAN disk-alarm diagnosis. It does not establish D-VXR-DS-00’s blueprint, domains, weights, format, or scheduling rules. Verify those items through the current official listing, then use the documented workflows to practise explaining what must be checked, why an action is safe, and how you will confirm the environment afterward.
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