cleanup and standardize naming for AG scripts

Author: williamadba

Availability Groups/Am I Primary.sql renamed to AG - Am I Primary.sql

@@ -0,0 +1,98 @@
+
+#https://docs.microsoft.com/en-us/sql/sql-server/failover-clusters/windows/change-the-ip-address-of-a-failover-cluster-instance?view=sql-server-2017
+#https://docs.microsoft.com/en-us/powershell/module/failoverclusters/set-clusterparameter?view=win10-ps
+
+#TODO: Uncomment Set-ClusterParameter commands for safety. 
+
+#This is for N01
+#For N02, change the first two variable names below, $Server_IP_Prod and $Server_IP_DR
+
+#You may want to change these variables to "_DC1" and "_DC2"
+$Server_IP_Prod = "10.0.3.179" 
+$Server_IP_DR  = "10.35.135.161"
+$Cluster_IP_Prod = "10.0.3.181"
+$Cluster_IP_DR = "10.35.135.163"
+
+$cluster_resource_name  =  "Cluster IP Address" #not from Failover Cluster Manager or SQL, but from the Get-ClusterResource cmdlet. Usually "Cluster IP Address"
+#$listener_name = "GSFSQASCS_172.20.63.21" #not from Failover Cluster Manager or SQL, but from the Get-ClusterResource cmdlet. USually it's "AGname_IPAddress"
+
+#Figure out where we are right now.
+$Current_Cluster_ipaddress = get-clusterresource -Name "Cluster IP Address" | Get-ClusterParameter -Name "Address" | Select-Object Value 
+$CurrentIP = get-netipaddress | Where-Object -FilterScript { $_.IPAddress -contains $Server_IP_Prod -or $_.IPAddress -contains $Server_IP_DR} | Select-Object IPAddress
+
+If ($currentIP -match $Server_IP_Prod -and $Current_Cluster_ipaddress -match $Cluster_IP_Prod )
+{ 
+    #We're in PROD and Cluster agrees, nothing to do
+}
+ElseIf ($currentIP -match $Server_IP_DR -and $Current_Cluster_ipaddress -match $Cluster_IP_DR )
+{ 
+    #We're in DR and Cluster agrees, nothing to do
+}
+ElseIf ($currentIP -match $Server_IP_DR -and $Current_Cluster_ipaddress -match $Cluster_IP_Prod )
+{
+    #We've failed over to DR. The Server's IP has been updated, but the Cluster hasn't yet.
+
+    import-module sqlps
+    #Add new IP for xerto destination to AG Listener before the failover
+    #this next step should only need to be done once.
+    Add-SqlAvailabilityGroupListenerStaticIp -Path "SQLSERVER:\SQL\localhost\DEFAULT\AvailabilityGroups\SCRSQL\AvailabilityGroupListeners\scrsqlp01vip" -StaticIp "10.35.135.164/255.255.255.0" -Script
+  
+
+        #Verify
+        Get-ClusterResource $cluster_resource_name | Get-ClusterParameter
+
+        $new_ip = $Cluster_IP_DR
+        $Current_IP_Cluster_Resource_Name  = Get-ClusterResource -Name $cluster_resource_name
+
+        #Subnet mask will not change after the Xerto failover
+        #$new_subnet_mask = "255.255.255.0" #need to determine this info after xerto failover
+            
+        $parameter1 = New-Object Microsoft.FailoverClusters.PowerShell.ClusterParameter $Current_IP_Cluster_Resource_Name,Address,$new_ip
+        #Subnet mask will not change after the Xerto failover
+        #$parameter2 = New-Object Microsoft.FailoverClusters.PowerShell.ClusterParameter $Current_IP_Cluster_Resource_Name,SubnetMask,$new_subnet_mask 
+        $parameters = $parameter1 #,$parameter2 
+         
+        #Change the IPs
+        #Uncomment the below line to actually have an impact! Commented for safety.
+        $parameters #| Set-ClusterParameter
+            
+
+    #This step would happen once after the changes
+    #Make the change happen
+    Stop-ClusterResource $cluster_resource_name
+    Start-ClusterResource $cluster_resource_name
+}
+
+ElseIf ($currentIP -match $Server_IP_Prod -and $Current_Cluster_ipaddress -match $Cluster_IP_DR )
+{
+    #We've failed back to PROD. The Server's IP has been updated, but the Cluster hasn't yet.
+    
+        #Verify
+        Get-ClusterResource $cluster_resource_name | Get-ClusterParameter
+
+        $new_ip = $Cluster_IP_DR
+        $Current_IP_Cluster_Resource_Name  = Get-ClusterResource -Name $cluster_resource_name
+
+        #Subnet mask will not change after the Xerto failover
+        #$new_subnet_mask = "255.255.255.0" #need to determine this info after xerto failover
+            
+        $parameter1 = New-Object Microsoft.FailoverClusters.PowerShell.ClusterParameter $Current_IP_Cluster_Resource_Name,Address,$new_ip
+        #Subnet mask will not change after the Xerto failover
+        #$parameter2 = New-Object Microsoft.FailoverClusters.PowerShell.ClusterParameter $Current_IP_Cluster_Resource_Name,SubnetMask,$new_subnet_mask 
+        $parameters = $parameter1 #,$parameter2 
+         
+        #Change the IPs
+        #Uncomment the below line to actually have an impact! Commented for safety.
+        $parameters #| Set-ClusterParameter
+            
+
+    #This step would happen once after the changes
+    #Make the change happen
+    Stop-ClusterResource $cluster_resource_name
+    Start-ClusterResource $cluster_resource_name
+     
+
+}
+
+    #Verify
+    Get-ClusterResource $cluster_resource_name | Get-ClusterParameter