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Author: v-sreedevank

articles/migrate/common-questions-business-case.md

@@ -61,40 +61,6 @@ To verify in an existing project:
 
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-If you aren't aware of your facilities costs, use the following methodology.
-
-#### Step-by-step guide to calculate facilities costs
- The facilities cost calculation in Azure Migrate is based on the Cloud Economics methodology, tailored specifically for your on-premises datacenter. This methodology is based on a colocation model, which prescribes an average cost value per kWh, which includes space, power and lease costs, which usually comprise facilities costs for a datacenter.   
-1. **Determine the current energy consumption (in kWh) for your workloads**: Energy consumption by current workloads = Energy consumption for compute resources + Energy consumption for storage resources.
-    1. **Energy consumption for compute resources**:  
-        1. **Determine the total number of physical cores in your on-premises infrastructure**: In case you don't have the number of physical cores, you can use the formula - Total number of physical cores = Total number of virtual cores/2.
-        1. **Input the number of physical cores into the given formula**: Energy consumption for compute resources (kWh) = Total number of physical cores * On-Prem Thermal Design Power or TDP (kWh per core) * Integration of Load factor * On-premises Power Utilization Efficiency or PUE.
-        1. If you aren't aware of the values of TDP, Integration of Load factor and On-premises PUE for your datacenter, you can use the following assumptions for your calculations:
-            1. On-Prem TDP (kWh per core) = **0.009**
-            1. Integration of Load factor = **2.00** 
-            1. On-Prem PUE = **1.80**
-    1. **Energy consumption for storage resources**:
-        1. **Determine the total storage in use for your on-premises infrastructure in Terabytes (TB)**. 
-        1. **Input the storage in TB into the given formula**: Energy consumption for storage resources (kWh) = Total storage capacity in TB * On-Prem storage Power Rating (kWh per TB) * Conversion of energy consumption into Peak consumption * Integration of Load factor * On-premises PUE (Power utilization effectiveness).
-        1. If you aren't aware of the values of On-premises storage power rating, conversion factor for energy consumption into peak consumption, and Integration of Load factor and On-premises PUE, you can use the following assumptions for your calculations:
-            1. On-Prem storage power rating (kWh per TB) = **10**
-            1. Conversion of energy consumption into peak consumption = **0.0001**
-            1. Integration of Load factor = **2.00**
-            1. On-Prem PUE = **1.80**
-1. **Determine the unused energy capacity for your on-premises infrastructure**: By default you can assume that **40%** of the datacenter energy capacity remains unused. 
-1. **Determine the total energy capacity of the datacenter**: Total energy capacity = Energy consumption by current workloads / (1-unused energy capacity).
-1. **Calculate total facilities costs per year**: Facilities costs per year = Total energy capacity * Average colocation costs ($ per kWh per month) * 12. You can assume the average colocation cost = **$340 per kWh per month**.
-
-**Sample example**  
-
-Assume that Contoso, an e-commerce company has 10,000 virtual cores and 5,000 TB of storage. Let's use the formula to calculate facilities cost:
-1. Total number physical cores = **10,000/2** = **5,000**
-1. Energy consumption for compute resources = **5,000 * 0.009 * 2 * 1.8 = 162 kWh**
-1. Energy consumption for storage resources = **5,000 * 10 * 0.0001 * 2 * 1.8 = 18 kWh**
-1. Energy consumption for current workloads = **(162 + 18) kWh = 180 kWh**
-1. Total energy capacity of datacenter = **180/(1-0.4) = 300 kWh**
-1. Yearly facilities cost = **300 kWh * $340 per kWh * 12 = $1,224,000 = $1.224 Mn**
-
 ### What does the different migration strategies mean?
 **Migration Strategy** | **Details** | **Assessment insights**
 --- | --- | ---

articles/migrate/concepts-business-case-calculation.md

@@ -184,7 +184,7 @@ Cost components for running on-premises servers. For TCO calculations, an annual
 | Storage  | Storage Hardware |      | Estimated as a sum of total storage hardware acquisition cost + software maintenance cost. <br> Total storage hardware acquisition cost = Total volume of storage attached to VMs (across all machines) * Cost per GB per month * 12. Cost per GB can be customized in the assumptions similar to the current On-premises storage cost. |
 | Network | Network Hardware and software   | Network equipment (Cabinets, switches, routers, load balancers etc.) and software  | Estimated as a sum of total network hardware and software cost + network maintenance cost  Total network hardware and software cost is defaulted to 10%* (compute and licensing +storage cost) and can be customized in the assumptions. Network maintenance cost is defaulted to 15%*(Total network hardware and software cost) and can be customized in the assumptions Same as current On-premises networking cost. |
 | Security | General Servers  | Server security cost | Estimated as sum of total protection cost for general servers and SQL workloads using MDC via Azure Arc. MDC Servers plan 2 is assumed for servers. Microsoft Defender for SQL on Azure-connected databases is assumed for SQL Server |
-| Facilities | Facilities & Infrastructure | DC Facilities - Lease and Power | The facilities cost is based on a colocation model, which includes space, power, and lease costs per kWh.<br> Annual facilities cost = Total energy capacity * Average colocation costs * 12. (Assume 40% of datacenter energy capacity remains unused.) <br> Total energy capacity = Energy consumption by current workloads / (1 - unused energy capacity). <br>To determine energy consumption for your workloads: <br>**Compute resources**: Total physical cores * On-Prem TDP (0.009 kWh per core) * Load factor (2.00) * On-Prem PUE (1.80).<br> **Storage resources**: Total storage in TB * On-Prem storage power rating (10 kWh per TB) * Conversion factor (0.0001) * Load factor (2.00) * On-Prem PUE (1.80). |
+| Facilities | Facilities & Infrastructure | DC Facilities - Lease and Power | The facilities cost is based on a colocation model, which includes space, power, and lease costs per kWh.<br> Annual facilities cost = Total energy capacity * Average colocation costs * 12. (Assume 40% of datacenter energy capacity remains unused.) <br> Total energy capacity = Energy consumption by current workloads / (1 - unused energy capacity). <br>To determine energy consumption for your workloads: <br>- Compute resources: Total physical cores * On-Prem TDP (0.009 kWh per core) * Load factor (2.00) * On-Prem PUE (1.80).<br>- Storage resources: Total storage in TB * On-Prem storage power rating (10 kWh per TB) * Conversion factor (0.0001) * Load factor (2.00) * On-Prem PUE (1.80). |
 | Labor | Labor  | IT admin | Same as current On-premises labor cost.|
 | Management | Management Software licensing | System center or other management software | Estimated as sum of total management cost for general servers. This includes monitoring and patching. Patching is assumed to be free via Azure Update Manager as it is included in MDC Servers plan 2. Monitoring cost is calculated per day based on log storage and alerts and multiplied*365 Estimated as 70% of on-premises management labor cost by default as it is assumed that 30% of labor effects could be redirected to other high impact projects for the company due to productivity improvements.  Labor costs can be customized in Azure Arc setting under Azure cost assumptions.|