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10 Posts


November 21st, 2021 11:00

how to determine the vxrail dell deployed model

Dear Sirs


please I need some help in determining the VXRAIL deployment options and if DNS is internal or external image001-4.jpgusing pictures, I need it for exam preparation and I having some doubt about the answer, please if any one can help me, the pictures are attached

74 Posts

November 29th, 2021 05:00

Quick answer: Based on the screenshot, the VxRail appears to be using a Standard VxRail deployment with an External vCenter. This can be determined since no vCenter VM is listed in the cluster and this is not a VCF on VxRail deployment since it has no VCF on VxRail related VMs. Question by question responses:


  1. Question: How to determine the VxRail Model of a node?

Answer: In the vSphere Client, in the Hosts and Clusters view select an ESXi host. Select the Monitor tab in the middle pane, scroll down, and then select VxRail > Physical View. The VxRail Model is displayed.




  1. Question: How to determine the underlying Dell PowerEdge from a VxRail Model number?


  1. Browser to https:// /rest/vxm/api-doc-html .
  2. From the Select a definition drop-down menu select Chassis.
  3. Select the Authorize button and enter your administrator@vsphere.local password.
  4. Select GET /v1/chassis request button
  5. Select Try it out > Execute.
  6. In the output, observe the output for the render_category field. The equivalent PowerEdge Server model number will be listed:


  1. Question: How to determine VxRail Deployment mode?


  1. Browser to https:// /rest/vxm/api-doc-html .
  2. From the Select a definition drop-down menu select vc.
  3. Select the Authorize button and enter your administrator@vsphere.local password.
  4. Select GET /v1/vc/mode request button
  5. Select Try it out > Execute.
  6. In the output, observe the output for the vc_mode field. The example below is using an EXTERNAL vCenter:



  1. Question: Is the VxRail deployment using an Internal or external DNS?

Answer: In the vSphere Client, select the VxRail Manager VM, and select LAUNCH WEB CONSOLE. Log in as root and the associated password. Perform an nslookup for the VxRail Manager FQDN. If the address of the DNS Server is the same as the VxRail Manager then it is using Internal DNS (dnsmasq service on the VxRail Manager VM), otherwise it is using an External DNS. The example below shows an External DNS server since it is not the same IP address as the VxRail Manager:





5 Posts

December 6th, 2021 02:00

And how can one determine if internal vCenter deployed is with internal DNS? I can't found anything in documents and in HTML5 client is nothing to find regarding vCenter DNS.



74 Posts

December 6th, 2021 05:00

Browse to the vCenter Server Appliance Management Interface (VAMI) at https:// :5480 and login as root. Check the DNS settings: Select Networking > DNS Servers. If the address of the DNS Server is the same as the VxRail Manager, then vCenter is using VxRail Manager for DNS (Internal DNS), otherwise it is an external DNS. The example below is using an External DNS server since the IP address is different than that of my VxRail Manager (



10 Posts

December 14th, 2021 05:00

Thanks for replying , so according to your answer if its external vcenter then automatically will be using the external DNS

74 Posts

December 15th, 2021 05:00

Greetings, in VxRail, an external vCenter must use an external DNS.


10 Posts

December 16th, 2021 00:00

Referring to the pictures are my answers correct?

for first picture Its internal vcenter and external DNS since when we select internal vcenter it will be automatic change to external DNS


for the second picture its customer supplied VDS since there is multiple clusters managed by same vcenter.internal vcenter and external DNs.pngCUstomer supplied vds.jpg

74 Posts

December 16th, 2021 12:00

Greetings, the most definitive way to determine if a vCenter is External or Embedded in the context of VxRail is by browsing to the OpenAPI of each vCenter and executing the /v1/vc/mode request previously detailed in this discussion. The picture displayed is suggestive, but not definitive. A vCenter hosted inside a VxRail cluster maybe either Embedded or External. Example, in the case of VCF on VxRail, vCenters start as Embedded and are converted to External, which changes the lifecycle management responsibility from VxRail Manager to SDDC Manager (A VCF on VxRail component). Being an External vCenter indicates lifecyle management is not handled by VxRail Manager, it does not indicate the location of the vCenter. In VCF on VxRail, vCenter(s) are hosted inside a VxRail cluster, but are External in the context of lifecycle management. These nuances are why I suggest using the OpenAPI approach for a definitive answer.


12 Posts

May 9th, 2022 01:00


i got this question in the simulator and you can only browse the vxrail manager monitor and configuration tab and the vsphere menu.

any idea how to verify if internal DNS or external by only browsing through those?


Thank you.

74 Posts

May 9th, 2022 08:00

Greetings, in the vSphere Client, in the "Hosts and Clusters" view, select an ESXi host in the left pane. In the right pane select the "Configure" tab. Under the "Networking" section select "TCP/IP configuration". Notice the column entitled "Preferred DNS server". If the IP address of the "Preferred DNS server" matches the VxRail Manager's IP, then it must be an Internal DNS, i.e. the VxRail Manager system hosts DNS.


The VxRail Manager's IP address is visible in the "Hosts and Clusters" view when highlighting the VxRail Manager VM. In the "Summary" tab in the right pane look for the "IP Addresses" field. This data comes from VMware Tools installed on the Guest OS (VxRail Manager). In my example, the "Preferred DNS server" value is, while my VxRail Manager's IP address is, therefore, the environment in my example must be using an "External" DNS server. 




12 Posts

May 11th, 2022 00:00


Thank you for your detailed answer.

And in case we cannot browse the host configure tab, any alternative way to determine DNS IP?

and for Vcenter server do we always assume internal Vcenter when there is an embedded VM? or other verifications should be done too?

Community Manager


148 Posts

June 27th, 2022 06:00

Thank you, Rob. 

@Mr.HJ @Joe Chaaya @Al3x73 Please click on Accept as solution if you got the response you are looking for from our subject matter expertise. 

Appreciate it! 

March 30th, 2023 05:00

another way is by checking if vcenter "Convert" option is still available. if it is, vc is internal/embedded otherwise its external



3 Posts

August 3rd, 2023 02:00

Thats unfortunately not true.

I had the same issue in the Exam Simulation to check if vCenter is internal or external.

The VxRail Cluster Tag in Cluster Summary show only the Deployment Type (3Node, 2Node, Dynamic,..)

The Update Tab in Cluster -> Configure show vCenter Version for internal and external Mode...

Dell is not providing my entered simulation answer or will check the results with me together.


The Information Page dont have "vCenter mode" anymore.

And the "Actions" Button which can say "convert to external mode" is not allowed to use.

In Simulation you cannot use API...



It seems that new dell-framework is for creating exam-money.

Community Manager


477 Posts

August 3rd, 2023 03:00

Hello @Parziwolle,

Thank you for your post, and submit your question to our service team regarding your "Dell VxRail Deploy 2023" exam result. 

Based on your answers, we reviewed them carefully with our exam team. But we will check your post and get back to you.   

74 Posts

August 4th, 2023 06:00


Please note, this question is different than the original question this thread addressed.

The essence of the question:
Use the simulator, discern the following:

  • The version of VxRail.
  • The version of vCenter.

This question can be answered in several ways, I'll focus on one method available in the simulator:

In the "Hosts and Clusters" view, select the VxRail cluster followed by the "Monitor" tab in the middle pane. Scroll down and select the "Last configuration data sent" item under the "VxRail" heading. This is the data collected by VxRail and optionally sent to Dell. The output includes details about VxRail and vCenter versions among other items.

Use the simulator, discern the following:

  • Whether this deployment uses a "VxRail deployed" or an "existing vCenter".

This question can be answered in several ways, I'll focus on what is most readily seen in the simulator:

In the "Hosts and Clusters" view, there is no vCenter VM hosted by the VxRail cluster, this must be an existing/customer supplied vCenter.


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