diff --git a/drivers/scheduler/k8s/specs/postgres-backup-multivol/px-postgres-app.yaml b/drivers/scheduler/k8s/specs/postgres-backup-multivol/px-postgres-app.yaml
index b12e09411..237c7a9d2 100644
--- a/drivers/scheduler/k8s/specs/postgres-backup-multivol/px-postgres-app.yaml
+++ b/drivers/scheduler/k8s/specs/postgres-backup-multivol/px-postgres-app.yaml
@@ -28,6 +28,28 @@ spec:
                     values:
                       - postgres
               topologyKey: "kubernetes.io/hostname"
+      initContainers:
+        - name: init-postgres-data
+          image: busybox
+          command: ["/bin/sh", "-c"]
+          args:
+            {{ if .ClaimsCount }}
+              {{- range $val := Iterate .ClaimsCount }}
+              - echo "Initializing data for postgredb-{{ $val }}"; dd if=/dev/zero of=/mnt/data{{ $val }}/initfile bs=1M count=10;
+              {{- end }}
+              {{ else }}
+              - echo "Initializing data for postgredb"; dd if=/dev/zero of=/mnt/data/initfile bs=1M count=10;
+              {{- end }}
+          volumeMounts:
+            {{ if .ClaimsCount }}
+              {{- range $val := Iterate .ClaimsCount }}
+              - name: postgredb-{{ $val }}
+                mountPath: /mnt/data{{ $val }}
+              {{- end }}
+              {{ else }}
+              - name: postgredb
+                mountPath: /mnt/data
+              {{- end }}
       containers:
         - name: postgres
           image: postgres:9.5
@@ -45,14 +67,14 @@ spec:
               value: /var/lib/postgresql/data/pgdata
           volumeMounts:
             {{ if .ClaimsCount }}
-            {{- range $val := Iterate .ClaimsCount }}
-            - name: postgredb-{{ $val }}
-              mountPath: /var/lib/postgresql/data{{ $val }}
-            {{- end }}
-            {{ else }}
-            - name: postgredb
-              mountPath: /var/lib/postgresql/data
-            {{- end }}
+              {{- range $val := Iterate .ClaimsCount }}
+              - name: postgredb-{{ $val }}
+                mountPath: /var/lib/postgresql/data{{ $val }}
+              {{- end }}
+              {{ else }}
+              - name: postgredb
+                mountPath: /var/lib/postgresql/data
+              {{- end }}
           readinessProbe:
             exec:
               command: ["psql", "-U", "pgbench", "-c", "CREATE TABLE IF NOT EXISTS test_table ( test_text TEXT ); INSERT INTO test_table VALUES ( 'test_message' ); SELECT * FROM test_table; SELECT pg_sleep(1); DELETE FROM test_table;"]
@@ -64,14 +86,14 @@ spec:
             initialDelaySeconds: 45
             timeoutSeconds: 2
       volumes:
-      {{ if .ClaimsCount }}
-        {{- range $val := Iterate .ClaimsCount }}
-        - name: postgredb-{{ $val }}
-          persistentVolumeClaim:
-            claimName: postgres-data-{{ $val }}
-      {{- end }}
-      {{- else }}
-        - name: postgredb
-          persistentVolumeClaim:
-            claimName: postgres-data
-      {{- end }}
\ No newline at end of file
+        {{ if .ClaimsCount }}
+          {{- range $val := Iterate .ClaimsCount }}
+          - name: postgredb-{{ $val }}
+            persistentVolumeClaim:
+              claimName: postgres-data-{{ $val }}
+          {{- end }}
+          {{- else }}
+          - name: postgredb
+            persistentVolumeClaim:
+              claimName: postgres-data
+          {{- end }}
diff --git a/tests/backup/backup_test_labels.go b/tests/backup/backup_test_labels.go
index b383f56f0..c80756f61 100644
--- a/tests/backup/backup_test_labels.go
+++ b/tests/backup/backup_test_labels.go
@@ -381,6 +381,11 @@ const (
 	SkipTestLabel = "skip-test"
 )
 
+// Scale test labels
+const (
+	ScaleTestLabel = "Scale-test"
+)
+
 // Volume labels
 const (
 	PortworxVolumeLabel = "portworx-volume"
@@ -410,7 +415,7 @@ var TestCaseLabelsMap = map[TestCaseName][]TestCaseLabel{
 	DuplicateSharedBackup:                                            {DuplicateSharedBackupLabel, aetosl3awsVanilla, aetosl3awsrke, aetosl3awsPXBackupupgrade, aetosl3awsstorkupgrade, aetosl3awsPXBackupStorkupgrade, aetosl3nfsrke, aetosl3nfsVanilla, vanillaFacdPipelineS3, vanillaFacdPipelineNfs, vanillaFadaPipelineS3, vanillaFadaPipelineNfs, vanillaFBDAPipelineS3, vanillaFBDAPipelineNfs, ibmNonPXIKSPipelineS3, ibmPxIKSPipelineS3, ibmNonPxRoksPipelineS3, ibmPxRoksPipelineS3, ibmNonPxIksPipelineS3Upgrade, ibmPxIksPipelineS3Upgrade, ocpPxPipelineS3Upgrade, ibmNonPxRoksPipelineS3Upgrade, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly, vanillaPipelineNfsNightly},
 	DifferentAccessSameUser:                                          {DifferentAccessSameUserLabel, aetosl3awsVanilla, aetosl3awsrke, aetosl3awsPXBackupupgrade, aetosl3awsstorkupgrade, aetosl3awsPXBackupStorkupgrade, aetosl3nfsrke, aetosl3nfsVanilla, vanillaFacdPipelineS3, vanillaFacdPipelineNfs, vanillaFadaPipelineS3, vanillaFadaPipelineNfs, vanillaFBDAPipelineS3, vanillaFBDAPipelineNfs, ibmNonPXIKSPipelineS3, ibmPxIKSPipelineS3, ibmNonPxRoksPipelineS3, ibmPxRoksPipelineS3, ibmNonPxIksPipelineS3Upgrade, ibmPxIksPipelineS3Upgrade, ocpPxPipelineS3Upgrade, ibmNonPxRoksPipelineS3Upgrade, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly, vanillaPipelineNfsNightly},
 	ShareBackupWithUsersAndGroups:                                    {ShareBackupWithUsersAndGroupsLabel, aetosl3awsVanilla, aetosl3awsrke, aetosl3awsPXBackupupgrade, aetosl3awsstorkupgrade, aetosl3awsPXBackupStorkupgrade, aetosl3nfsrke, aetosl3nfsVanilla, vanillaFacdPipelineS3, vanillaFacdPipelineNfs, vanillaFadaPipelineS3, vanillaFadaPipelineNfs, vanillaFBDAPipelineS3, vanillaFBDAPipelineNfs, ibmNonPXIKSPipelineS3, ibmPxIKSPipelineS3, ibmNonPxRoksPipelineS3, ibmPxRoksPipelineS3, ibmNonPxIksPipelineS3Upgrade, ibmPxIksPipelineS3Upgrade, ocpPxPipelineS3Upgrade, ibmNonPxRoksPipelineS3Upgrade, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly},
-	ShareLargeNumberOfBackupsWithLargeNumberOfUsers:                  {ShareLargeNumberOfBackupsWithLargeNumberOfUsersLabel},
+	ShareLargeNumberOfBackupsWithLargeNumberOfUsers:                  {ShareLargeNumberOfBackupsWithLargeNumberOfUsersLabel, ScaleTestLabel},
 	CancelClusterBackupShare:                                         {CancelClusterBackupShareLabel, aetosl3awsVanilla, aetosl3awsrke, aetosl3awsPXBackupupgrade, aetosl3awsstorkupgrade, aetosl3awsPXBackupStorkupgrade, aetosl3nfsrke, aetosl3nfsVanilla, vanillaFacdPipelineS3, vanillaFacdPipelineNfs, vanillaFadaPipelineS3, vanillaFadaPipelineNfs, vanillaFBDAPipelineS3, vanillaFBDAPipelineNfs, ibmNonPXIKSPipelineS3, ibmPxIKSPipelineS3, ibmNonPxRoksPipelineS3, ibmPxRoksPipelineS3, ocpPxPipelineS3Upgrade, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly, vanillaPipelineNfsNightly},
 	ShareBackupAndEdit:                                               {ShareBackupAndEditLabel, aetosl3awsVanilla, aetosl3awsrke, aetosl3awsPXBackupupgrade, aetosl3awsstorkupgrade, aetosl3awsPXBackupStorkupgrade, aetosl3nfsrke, aetosl3nfsVanilla, vanillaFacdPipelineS3, vanillaFacdPipelineNfs, vanillaFadaPipelineS3, vanillaFadaPipelineNfs, vanillaFBDAPipelineS3, vanillaFBDAPipelineNfs, ibmNonPXIKSPipelineS3, ibmPxIKSPipelineS3, ibmNonPxRoksPipelineS3, ibmPxRoksPipelineS3, ibmNonPxIksPipelineS3Upgrade, ibmPxIksPipelineS3Upgrade, ocpPxPipelineS3Upgrade, ibmNonPxRoksPipelineS3Upgrade, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly},
 	SharedBackupDelete:                                               {SharedBackupDeleteLabel, aetosl3awsVanilla, aetosl3awsrke, aetosl3awsPXBackupupgrade, aetosl3awsstorkupgrade, aetosl3awsPXBackupStorkupgrade, aetosl3nfsrke, aetosl3nfsVanilla, vanillaFacdPipelineS3, vanillaFacdPipelineNfs, vanillaFadaPipelineS3, vanillaFadaPipelineNfs, vanillaFBDAPipelineS3, vanillaFBDAPipelineNfs, ibmNonPXIKSPipelineS3, ibmPxIKSPipelineS3, ibmNonPxRoksPipelineS3, ibmPxRoksPipelineS3, ibmNonPxIksPipelineS3Upgrade, ibmPxIksPipelineS3Upgrade, ocpPxPipelineS3Upgrade, ibmNonPxRoksPipelineS3Upgrade, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly, vanillaPipelineNfsNightly},
@@ -484,7 +489,7 @@ var TestCaseLabelsMap = map[TestCaseName][]TestCaseLabel{
 	BackupNamespaceInNfsRestoredFromS3:                               {BackupNamespaceInNfsRestoredFromS3Label, aetosl3awsVanilla, aetosl3awsrke, aetosl3nfsrke, aetosl3nfsVanilla, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly, vanillaPipelineNfsNightly},
 	DeleteS3ScheduleAndCreateNfsSchedule:                             {DeleteS3ScheduleAndCreateNfsScheduleLabel, aetosl3awsVanilla, aetosl3awsrke, aetosl3nfsrke, aetosl3nfsVanilla, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly, vanillaPipelineNfsNightly},
 	KubeAndPxNamespacesSkipOnAllNSBackup:                             {KubeAndPxNamespacesSkipOnAllNSBackupLabel, aetosl3awsVanilla, aetosl3nfsVanilla, vanillaFacdPipelineS3, vanillaFacdPipelineNfs, vanillaFadaPipelineS3, vanillaFadaPipelineNfs, vanillaFBDAPipelineS3, vanillaFBDAPipelineNfs, vanillaPipelineS3Upgrade, VanillaPipelineS3StorkUpgrade, vanillaPipelineS3Nightly, vanillaPipelineNfsNightly},
-	MultipleBackupLocationWithSameEndpoint:                           {MultipleBackupLocationWithSameEndpointLabel},
+	MultipleBackupLocationWithSameEndpoint:                           {MultipleBackupLocationWithSameEndpointLabel, ScaleTestLabel},
 	UpgradePxBackup:                                                  {UpgradePxBackupLabel},
 	StorkUpgradeWithBackup:                                           {StorkUpgradeWithBackupLabel},
 	PXBackupEndToEndBackupAndRestoreWithUpgrade:                      {PXBackupEndToEndBackupAndRestoreWithUpgradeLabel},
@@ -510,13 +515,13 @@ var TestCaseLabelsMap = map[TestCaseName][]TestCaseLabel{
 	DefaultBackupRestoreWithKubevirtAndNonKubevirtNS:                 {DefaultBackupRestoreWithKubevirtAndNonKubevirtNSLabel, KubevirtAppLabel},
 	KubevirtScheduledVMDelete:                                        {KubevirtScheduledVMDeleteLabel, KubevirtAppLabel},
 	CustomBackupRestoreWithKubevirtAndNonKubevirtNS:                  {CustomBackupRestoreWithKubevirtAndNonKubevirtNSLabel, KubevirtAppLabel},
-	ExcludeInvalidDirectoryFileBackup:                                {ExcludeInvalidDirectoryFileBackupLabel},
-	ExcludeDirectoryFileBackup:                                       {ExcludeDirectoryFileBackupLabel},
+	ExcludeInvalidDirectoryFileBackup:                                {ExcludeInvalidDirectoryFileBackupLabel, ScaleTestLabel},
+	ExcludeDirectoryFileBackup:                                       {ExcludeDirectoryFileBackupLabel, ScaleTestLabel},
 	MultipleMemberProjectBackupAndRestoreForSingleNamespace:          {MultipleMemberProjectBackupAndRestoreForSingleNamespaceLabel},
 	MultipleProvisionerCsiSnapshotDeleteBackupAndRestore:             {MultipleProvisionerCsiSnapshotDeleteBackupAndRestoreLabel},
 	BackupNetworkErrorTest:                                           {BackupNetworkErrorTestLabel},
 	IssueMultipleBackupsAndRestoreInterleavedCopies:                  {IssueMultipleBackupsAndRestoreInterleavedCopiesLabel},
-	ValidateFiftyVolumeBackups:                                       {ValidateFiftyVolumeBackupsLabel},
+	ValidateFiftyVolumeBackups:                                       {ValidateFiftyVolumeBackupsLabel, ScaleTestLabel},
 	PXBackupClusterUpgradeTest:                                       {PXBackupClusterUpgradeTestLabel},
 	BackupToLockedBucketWithSharedObjects:                            {BackupToLockedBucketWithSharedObjectsLabel, vanillaPipelineWithS3LockedBucket},
 	RemoveJSONFilesFromNFSBackupLocation:                             {RemoveJSONFilesFromNFSBackupLocationLabel},