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AHB usage calculation

Author: anosov1960

samples/manage/azure-hybrid-benefit/ahb-usage-in-subscription.ps1

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+# This scripts calculates the AHB usage by all the SQL resources in a specific subscription 
+# based on the selected Azure Hybrid Benefit option 
+
+# Set the subscription Id
+$SubcriptionId = read-host -Prompt "Enter Subscription ID"
+Set-AzContext -SubscriptionId $SubcriptionId
+
+# Variables to keep track of SQL VMs and VCPUs count
+$total_std_vcores = 0
+$total_ent_vcores = 0
+
+#Get all SQL databadses in the subscription
+$databases = Get-AzSqlServer | Get-AzSqlDatabase
+
+# Get the databases with License Included and add to VCore count
+foreach ($db in $databases){
+    if (($db.SkuName -ne "ElasticPool") -and ($db.LicenseType -eq "LicenseIncluded")) {
+        if ($db.Edition -eq "BusinessCritical") {
+            $total_ent_vcores += $db.Capacity
+        } elseif ($db.Edition -eq "GeneralPurpose") {
+            $total_std_vcores += $db.Capacity
+        }
+    }
+}
+
+#Get all SQL elastic pools in the subscription
+$pools = Get-AzSqlServer | Get-AzSqlElasticPool
+
+# Get the elastic pools with License Included and and add to VCore count
+foreach ($pool in $pools){
+    if ($pool.LicenseType -eq "LicenseIncluded") {
+        if ($pool.Edition -eq "BusinessCritical") {
+            $total_ent_vcores += $pool.Capacity
+        } elseif ($pool.Edition -eq "GeneralPurpose") {
+            $total_std_vcores += $pool.Capacity
+        }
+    }
+}
+
+#Get all SQL managed instances in the subscription
+$instances = Get-AzSqlInstance
+
+# Get the SQL managed instances with License Included and add to VCore count
+foreach ($ins in $instances){
+    if (($ins.InstancePoolName -eq $null) -and ($ins.LicenseType -eq "LicenseIncluded")) {
+        if ($ins.Sku.Tier -eq "BusinessCritical") {
+            $total_ent_vcores += $ins.VCores
+        } elseif ($ins.Sku.Tier -eq "GeneralPurpose") {
+            $total_std_vcores += $ins.VCores
+        }
+    }
+}
+
+#Get all instance pools in the subscription
+$ipools = Get-AzSqlInstancePool
+
+# Get the instance pools with License Included and add to VCore count
+foreach ($ip in $ipools){
+    if ($ip.LicenseType -eq "LicenseIncluded") {
+        if ($ip.Edition -eq "BusinessCritical") {
+            $total_ent_vcores += $ip.VCores
+        } elseif ($ip.Edition -eq "GeneralPurpose") {
+            $total_std_vcores += $ip.VCores
+        }
+    }
+}
+
+#Get All Sql VMs with AHB license configured
+$sql_vms= Get-AzSqlVM | where {$_.LicenseType.Contains("AHUB")}
+
+# Get the VM size, match it with the corresponding VCPU count and add to VCore count
+foreach ($sql_vm in $sql_vms){
+    $vm = Get-AzVm -Name $sql_vm.Name -ResourceGroupName $sql_vm.ResourceGroupName
+    $vm_size = $vm.HardwareProfile.VmSize
+    # Select first size and get the VCPus available
+    $size_info = Get-AzComputeResourceSku | where {$_.ResourceType.Contains('virtualMachines') -and $_.Name -like $vm_size} | Select-Object -First 1
+    # Save the VCPU count
+    $vcpu= $size_info.Capabilities | Where-Object {$_.name -eq "vCPUsAvailable"}
+
+    if ($vcpu){
+        $data = [pscustomobject]@{vm_resource_uri=$vm.Id;sku=$sql_vm.Sku;size=$vm_size;vcpus=$vcpu.value}
+        $array += $data
+
+        if ($data.sku -like "Enterprise"){
+            $total_ent_vcores += $data.vcpus
+        }elseif ($data.sku -like "Standard"){
+            $total_std_vcores += $data.vcpus
+        }
+    }
+}
+
+Write-Host "Total number of VCores for SQL Enterprise: "  $total_ent_vcores
+Write-Host "Total number of VCores for SQL Standard: "  $total_std_vcores