diff --git a/src/ResourceManager/Sql/AzureRM.Sql.Netcore.psd1 b/src/ResourceManager/Sql/AzureRM.Sql.Netcore.psd1
index 32b23bdc18c2..7c3bb4224808 100644
--- a/src/ResourceManager/Sql/AzureRM.Sql.Netcore.psd1
+++ b/src/ResourceManager/Sql/AzureRM.Sql.Netcore.psd1
@@ -139,9 +139,7 @@ CmdletsToExport = 'Get-AzureRmSqlDatabaseTransparentDataEncryption',
     'Remove-AzureRmSqlDatabaseLongTermRetentionBackup',
     'Get-AzureRmSqlDeletedDatabaseBackup',
     'Get-AzureRmSqlDatabaseGeoBackup',
-    'Get-AzureRmSqlServerBackupLongTermRetentionVault',
     'Restore-AzureRmSqlDatabase',
-    'Set-AzureRmSqlServerBackupLongTermRetentionVault',
     'Get-AzureRmSqlDatabaseRestorePoints',
     'Get-AzureRmSqlDatabaseAuditingPolicy',
     'Get-AzureRmSqlServerAuditingPolicy',
diff --git a/src/ResourceManager/Sql/ChangeLog.md b/src/ResourceManager/Sql/ChangeLog.md
index 92e49c045054..e3eaf9cfcfe4 100644
--- a/src/ResourceManager/Sql/ChangeLog.md
+++ b/src/ResourceManager/Sql/ChangeLog.md
@@ -18,6 +18,9 @@
         - Additional information about change #1
 -->
 ## Current Release
+* Deprecated unsupported LongTermRetention cmdlets:
+	* Get-AzureRmSqlServerBackupLongTermRetentionVault
+	* Set-AzureRmSqlServerBackupLongTermRetentionVault
 
 ## Version 4.8.1-preview
 * Bug fixes for cmdlets in Elastic Jobs
diff --git a/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.cs b/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.cs
index b09dd3d948bf..55beebc3b8be 100644
--- a/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.cs
+++ b/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.cs
@@ -67,17 +67,6 @@ public void TestRestorePointInTimeBackup()
                 RunPowerShellTest("Test-RestorePointInTimeBackup");
             }
         }
-        [Fact]
-        [Trait(Category.AcceptanceType, Category.CheckIn)]
-        public void TestServerBackupLongTermRetentionVault()
-        {
-            // TODO Rewrite SQL backup tests to be recordable
-            // TODO https://github.com/Azure/azure-powershell/issues/4155
-            if (TestMockSupport.RunningMocked)
-            {
-                RunPowerShellTest("Test-ServerBackupLongTermRetentionVault");
-            }
-        }
         [Fact(Skip = "LTR-V1 restore service is retiring in Prod.")]
         [Trait(Category.AcceptanceType, Category.CheckIn)]
         public void TestRestoreLongTermRetentionBackup()
diff --git a/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.ps1 b/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.ps1
index 45e9f48302e6..10962fb26251 100644
--- a/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.ps1
+++ b/src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseBackupTests.ps1
@@ -121,22 +121,6 @@ function Test-RestorePointInTimeBackup
 		-ServerName $db.ServerName -ResourceId $db.ResourceId -Edition 'GeneralPurpose' -VCore 2 -ComputeGeneration 'Gen4'
 }
 
-function Test-ServerBackupLongTermRetentionVault
-{
-	$location = "North Europe"
-	$serverVersion = "12.0"
-	$rg = Get-AzureRmResourceGroup -ResourceGroupName hchung
-	$server = Get-AzureRmSqlServer -ServerName hchung-testsvr -ResourceGroupName $rg.ResourceGroupName
-	$vaultResourceId = "/subscriptions/e5e8af86-2d93-4ebd-8eb5-3b0184daa9de/resourceGroups/hchung/providers/Microsoft.RecoveryServices/vaults/hchung-testvault"
-
-	# set
-	Set-AzureRmSqlServerBackupLongTermRetentionVault -ServerName $server.ServerName -ResourceGroupName $rg.ResourceGroupName -ResourceId $vaultResourceId
-	# get
-	$result = Get-AzureRmSqlServerBackupLongTermRetentionVault -ServerName $server.ServerName -ResourceGroupName $rg.ResourceGroupName
-	#verify
-	Assert-True { $result.RecoveryServicesVaultResourceId -eq $vaultResourceId }
-}
-
 function Test-DatabaseBackupLongTermRetentionPolicy
 {
 	$location = "North Europe"
diff --git a/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/GetAzureSqlServerBackupLongTermRetentionVault.cs b/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/GetAzureSqlServerBackupLongTermRetentionVault.cs
index 03ff4cfa06ad..3fc3893081e9 100644
--- a/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/GetAzureSqlServerBackupLongTermRetentionVault.cs	
+++ b/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/GetAzureSqlServerBackupLongTermRetentionVault.cs	
@@ -17,9 +17,11 @@
 using System.Management.Automation;
 using Microsoft.Azure.Commands.Sql.Backup.Model;
 using Microsoft.Azure.Commands.Sql.Database.Model;
+using Microsoft.WindowsAzure.Commands.Common.CustomAttributes;
 
 namespace Microsoft.Azure.Commands.Sql.Backup.Cmdlet
 {
+    [CmdletDeprecation]
     [Cmdlet(VerbsCommon.Get, "AzureRmSqlServerBackupLongTermRetentionVault", SupportsShouldProcess = true)]
     public class GetAzureSqlServerBackupLongTermRetentionVault : AzureSqlServerBackupLongTermRetentionVaultCmdletBase
     {
diff --git a/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/SetAzureSqlServerBackupLongTermRetentionVault.cs b/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/SetAzureSqlServerBackupLongTermRetentionVault.cs
index 712983338432..9c7ecbec8238 100644
--- a/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/SetAzureSqlServerBackupLongTermRetentionVault.cs	
+++ b/src/ResourceManager/Sql/Commands.Sql/Database Backup/Cmdlet/SetAzureSqlServerBackupLongTermRetentionVault.cs	
@@ -18,12 +18,14 @@
 using System.Management.Automation;
 using Microsoft.Azure.Commands.Sql.Backup.Model;
 using Microsoft.Azure.Commands.Sql.Database.Model;
+using Microsoft.WindowsAzure.Commands.Common.CustomAttributes;
 
 namespace Microsoft.Azure.Commands.Sql.Backup.Cmdlet
 {
     /// <summary>
     /// Cmdlet to create or update a new Azure Sql Server backup archival vault
     /// </summary>
+    [CmdletDeprecation]
     [Cmdlet(VerbsCommon.Set, "AzureRmSqlServerBackupLongTermRetentionVault",
         SupportsShouldProcess = true,
         ConfirmImpact = ConfirmImpact.Low)]