Project

Identify the engagement and the document metadata

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Configuration file (XML)

Export the whole sizing - project details, use cases, workloads, cluster policy, hardware, network and licensing - as a portable XML file, and import it again here or on another machine. Works with or without the portal.

Preview the XML for the current sizing 

          

        

      


      
      

        

          
Project details

          
These fields populate the cover page and headers of the Word, Excel and PowerPoint deliverables.

          

            

            

            

            

            

            

          

          

          
        


        

          
How this sizer works

          
Every hardware specification, licensing rule and design rule used by this tool is taken from official Nutanix sources. Nothing is invented.

          

            

              
Sizing method

              
    
                
  • CPU, memory and storage are sized independently; the cluster takes the largest node count.
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  • Every dimension is sized N+<failure tolerance> so a failed node's VMs restart and its data re-protects.
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  • Storage runs workload data through data-efficiency assumptions, snapshot reserve, replication factor and the utilisation ceiling.
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  • The result is validated against Nutanix minimums (RF2/RF3 node counts, EC-X node counts, CVM NUMA fit, edition limits).
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Official sources used

              
            

          

        

      


      
      

        

          
Select the use cases in scope

          
Each use case carries its own Nutanix sizing profile - oversubscription ratios, CVM allocation, headroom, data-efficiency assumptions and best practices. Selecting more than one blends the profiles conservatively.

          

        

        

      


      
      

        

          
          
          
        


        

          

            

              

                
Workloads

                
Add one row per workload profile. Growth is applied on the Cluster policy tab.

              

              

              
              
              
            

            

              

                

                  WorkloadUse caseSource
                  VMsvCPU/VMRAM GB/VM
                  Disk GB/VMUsed %IOPS/VM
                  vCPU:coreTotal vCPUCores
                  Total RAMData TiB
                

                
                
              

            

          

        


        

          

            
Import an RVTools export

            
Drop an RVTools .xlsx (or a vInfo CSV) here. The vInfo sheet is read for CPUs, Memory, Provisioned and In Use capacity, then classified into Nutanix use cases and turned into workload rows.

            

              Drop RVTools file here, or click to browse
              .xlsx / .xls / .csv - the vInfo sheet is used
              
            

            

              

                
              

              

              

                
                
              

              

                
              

            

            

          

        


        

          

            
Raw capacity requirement

            
Use this when you have been given headline numbers rather than a VM inventory: total physical cores, total memory and total usable storage. It is added as an extra workload row.

            

              

              

              

                
Physical cores, not vCPU. Enter 0 if compute is covered by the workload table.

              

              

                
Usable capacity as the customer sees it, before replication.

            

            
          

        

      


      
      

        

          

            
Resiliency

            

              

                
                
RF3 requires NCI Pro or higher.

              

                

            

            
            
          


          

            
Oversubscription & headroom

            
            

            

              

                
Use-case default. 1-2:1 for tier-1 databases, 4:1 general server, 6:1 VDI knowledge workers.

              

                
AHV does not overcommit memory by default - keep at 1.0 for production.

              

              

            

          


          

            
Controller VM

            
Nutanix default is 12 vCPU / 32 GB, rising to 16 vCPU / 64 GB for storage-heavy database nodes. All CVM vCPUs must fit inside one physical socket.

            

              

              

              

                
1.0 charges every CVM vCPU against the physical core pool (the conservative default).

              

            

          


          

            
Storage policy

            

              

                
Nutanix flags Data Resiliency critical when free space falls below rebuild capacity.

              

                
AOS metadata, oplog, Curator working space, drive formatting.

              

              

                

            

            

              

                
                
Assumed ratio

              

              

                
                
VDI / backup only

              

              

                
                
NCI Pro+, 4 nodes min

              

            

            
Data-efficiency ratios are planning assumptions, not guarantees. Validate against a real sample or a Nutanix Collector run before ordering.

          


          

            
Growth & hypervisor

            

              

              

              

                

            

          


          

            
Features in scope

            
These drive the NCI edition recommendation on the Licensing tab.

            

              

                
                
                
                
                
              

              

                
                
                
                
                
                
              

            

          

        

        

          
          
        

      


      
      

        

          

            

              
Hardware platform

              
Choose Nutanix NX appliances or an OEM platform. Every model, its CPU options, maximum memory, storage type, form factor and maximum raw capacity come from the official Nutanix Hardware Platform Spec Sheets.

            

          

          

          

            
            

            
          

        


        

          

            
Platform catalogue 

            

          


          

            

              
Node configuration

              

              

                

                

                

                

                  

                

                

                  
0 = size automatically.

              

            

            

          

        

      


      
      

        

          

            
Top-of-rack switching

            
Nutanix is switch agnostic - any standards-based switch meeting the Nutanix networking requirements is supported. Pick the model you intend to quote so the cabling plan and BoQ are accurate.

            

              

              

              

              

              

            

            

          


          

            
Node connectivity

            

              

                
                
Split evenly across the two ToR switches.

              

                
                
10 GbE is the practical minimum; 25 GbE+ for all-flash / NVMe.

              

            

            

            
            
          

        


        

          

            
VLAN plan
Edit to match the customer's addressing. Included in the logical diagram and every export.

            

            
            
          

          

            

              
VLAN IDPurposeSubnetMTUNotes

              
            

          

        


        

      


      
      

        

        

          

            
Licence selection

            

              

                

              

              

              

              

                

            

            
            
          


          

            
Add-ons

            
Add-ons extend NCI Pro with capabilities that are otherwise native to NCI Ultimate, or add a separate Nutanix product.

            

          

        


        

          
Licence line items

          

          
Nutanix does not publish list pricing. This tool produces quantities and metrics only - your Nutanix account team or partner adds commercials.

        


        

          
NCI edition comparison

          

        

      


      
      

        

        


        

          

          

          

          

        

        

        


        

          
How the node count was derived

          
Storage capacity model

        

        
Design policy & assumptions

        
Growth projection

      


      
      

        

          

            
Physical connectivity
Node-to-ToR cabling, switch redundancy, uplinks to the core and the out-of-band network.

            

            
            
          

          

        

        

          

            
Logical architecture
CVMs, hypervisor, distributed storage fabric, containers, virtual switch and VLANs.

            

            
            
          

          

        

        

          

            
Rack elevation
Chassis, switches and rack units consumed.

            

            
            
          

          

        

      


      
      

        

          
Generic bill of quantities

          
Placeholder SKUs with real quantities. Confirm exact part numbers with the vendor or distributor. No pricing is included - Nutanix does not publish list prices.

          

            
            
          

        

        

      


      
      

        

      


      
      

        

          
Export the deliverables

          
All three documents are generated in the browser from the same report model, so they always tell the same story. Charts and diagrams are embedded as images.

          

            

              
Word

              
Full design document - cover page, contents, executive summary, sizing derivation, capacity model, platform, network design, both diagrams, licensing, growth, best practices, BoQ and sources.

              
            

            

              
Excel

              
Workbook with one sheet per section - summary, workloads, sizing logic, design policy, capacity, platform, growth, licensing, network, BoQ, best practices, validation and sources.

              
            

            

              
PowerPoint

              
Executive deck - cover, summary KPIs, requirements, node-count rationale, capacity, platform, physical and logical diagrams, network, licensing, growth, best practices and BoQ.

              
            

          

        

        

          
Project file

          
Save the whole sizing as JSON to reopen or share later.

          
          
          
        

        

          
Sources