diff --git a/app/scripts/controllers/attachPVC.js b/app/scripts/controllers/attachPVC.js
index e719e4444b..89b4ccf71f 100644
--- a/app/scripts/controllers/attachPVC.js
+++ b/app/scripts/controllers/attachPVC.js
@@ -118,6 +118,63 @@ angular.module('openshiftConsole')
         $scope.$watchGroup(['attach.resource', 'attach.allContainers'], updateMountPaths);
         $scope.$watch('attach.containers', updateMountPaths, true);
 
+        var checkVolumeMountPath = function(newVolumeMount, container) {
+          var duplicateMount = _.find(container.volumeMounts, function(mount) {
+            return mount.mountPath === newVolumeMount && mount.name !== newVolumeMount.name;
+          });
+
+          // if a new volumeMount matches an existing mountPath,
+          // fail if their names differ. This can happen when the
+          // "overwrite" option is specified.
+          if (duplicateMount) {
+              displayError('The volume mount "' + duplicateMount.mountPath + '" with name "' + duplicateMount.name +'" already exists for container "' + container.name + '"');
+              return false;
+          }
+
+          return true;
+        };
+
+        var replaceExistingVolumeMount = function(newVolumeMount, container) {
+          // if the volume mount we are trying to add already exists,
+          // replace the existing mount with the newly created one.
+          // This can happen when the "overwrite" option is specified.
+          var index = _.findIndex(container.volumeMounts, { name: newVolumeMount.name });
+          if (index === -1) {
+            return false;
+          }
+
+          container.volumeMounts[index] = newVolumeMount;
+          return true;
+        };
+
+        var setVolumeMount = function(podTemplate, name, mountPath, subPath, readOnly) {
+          var success = true;
+          _.each(podTemplate.spec.containers, function(container) {
+            if (!isContainerSelected(container)) {
+              return;
+            }
+
+            var newVolumeMount =
+              StorageService.createVolumeMount(name, mountPath, subPath, readOnly);
+            if (!container.volumeMounts) {
+              container.volumeMounts = [];
+            }
+
+            if (!checkVolumeMountPath(newVolumeMount, container)) {
+              success = false;
+              return false;
+            }
+
+            if (replaceExistingVolumeMount(newVolumeMount, container)) {
+              return false;
+            }
+
+            container.volumeMounts.push(newVolumeMount);
+          });
+
+          return success;
+        };
+
         // load resources required to show the page (list of pvcs and deployment or deployment config)
         var load = function() {
           DataService.get(resourceGroupVersion, $routeParams.name, context).then(
@@ -175,16 +232,10 @@ angular.module('openshiftConsole')
             var readOnly = $scope.attach.readOnly;
             if (mountPath) {
               // for each container in the pod spec, add the new volume mount
-              angular.forEach(podTemplate.spec.containers, function(container) {
-                if (isContainerSelected(container)) {
-                  var newVolumeMount =
-                    StorageService.createVolumeMount(name, mountPath, subPath, readOnly);
-                  if (!container.volumeMounts) {
-                    container.volumeMounts = [];
-                  }
-                  container.volumeMounts.push(newVolumeMount);
-                }
-              });
+              if(!setVolumeMount(podTemplate, name, mountPath, subPath, readOnly)) {
+                $scope.disableInputs = false;
+                return;
+              }
             }
 
             // add the new volume to the pod template
@@ -192,7 +243,14 @@ angular.module('openshiftConsole')
             if (!podTemplate.spec.volumes) {
               podTemplate.spec.volumes = [];
             }
-            podTemplate.spec.volumes.push(newVolume);
+
+            // if the newly created volume already exists, only
+            // fail if the "overwrite" option was not set
+            var volumeExists = _.some(podTemplate.spec.volumes, { name: newVolume.name });
+
+            if (!volumeExists) {
+              podTemplate.spec.volumes.push(newVolume);
+            }
 
             DataService.update(resourceGroupVersion, resource.metadata.name, $scope.attach.resource, context).then(
               function() {
diff --git a/app/views/attach-pvc.html b/app/views/attach-pvc.html
index f0eb14a80f..df3e6c2f7f 100644
--- a/app/views/attach-pvc.html
+++ b/app/views/attach-pvc.html
@@ -83,6 +83,7 @@ <h3>Volume</h3>
                       ng-model="attach.mountPath"
                       ng-pattern="/^\/.*$/"
                       osc-unique="existingMountPaths"
+                      osc-unique-disabled="attach.overwrite"
                       placeholder="example: /data"
                       autocorrect="off"
                       autocapitalize="none"
@@ -143,6 +144,7 @@ <h3>Volume</h3>
                       name="volumeName"
                       ng-model="attach.volumeName"
                       osc-unique="existingVolumeNames"
+                      osc-unique-disabled="attach.overwrite"
                       ng-pattern="/^[a-z0-9]([-a-z0-9]*[a-z0-9])?$/"
                       maxlength="63"
                       placeholder="(generated if empty)"
@@ -171,6 +173,18 @@ <h3>Volume</h3>
                   </div>
                 </div>
 
+                <div class="form-group">
+                  <div class="checkbox">
+                    <label>
+                      <input type="checkbox" ng-model="attach.overwrite" aria-describedby="overwrite-help">
+                      Overwrite
+                    </label>
+                    <div id="overwrite-help" class="help-block">
+                      Overwrite a volume mount if it already exists.
+                    </div>
+                  </div>
+                </div>
+
                 <div class="form-group">
                   <div class="checkbox">
                     <label>
diff --git a/dist/scripts/scripts.js b/dist/scripts/scripts.js
index fbef63ae4f..e017e218b9 100644
--- a/dist/scripts/scripts.js
+++ b/dist/scripts/scripts.js
@@ -8492,6 +8492,25 @@ var e = _.get(n, "attach.resource.spec.template");
 n.existingMountPaths = m.getMountPaths(e, k);
 };
 n.$watchGroup([ "attach.resource", "attach.allContainers" ], j), n.$watch("attach.containers", j, !0);
+var P = function(e, t) {
+var n = _.find(t.volumeMounts, function(t) {
+return t.mountPath === e && t.name !== e.name;
+});
+return !n || (C('The volume mount "' + n.mountPath + '" with name "' + n.name + '" already exists for container "' + t.name + '"'), !1);
+}, R = function(e, t) {
+var n = _.findIndex(t.volumeMounts, {
+name: e.name
+});
+return -1 !== n && (t.volumeMounts[n] = e, !0);
+}, I = function(e, t, n, a, r) {
+var o = !0;
+return _.each(e.spec.containers, function(e) {
+if (k(e)) {
+var i = m.createVolumeMount(t, n, a, r);
+return e.volumeMounts || (e.volumeMounts = []), P(i, e) ? !R(i, e) && void e.volumeMounts.push(i) : (o = !1, !1);
+}
+}), o;
+};
 s.get(v, t.name, d).then(function(e) {
 n.attach.resource = e, n.breadcrumbs = i.getBreadcrumbs({
 object: e,
@@ -8516,14 +8535,11 @@ n.clusterQuotas = e.by("metadata.name"), n.outOfClaims = c.isAnyStorageQuotaExce
 if (n.disableInputs = !0, S(), n.attachPVCForm.$valid) {
 n.attach.volumeName || (n.attach.volumeName = b("volume-"));
 var e = n.attach.resource, a = _.get(e, "spec.template"), r = n.attach.persistentVolumeClaim, o = n.attach.volumeName, i = n.attach.mountPath, c = n.attach.subPath, l = n.attach.readOnly;
-i && angular.forEach(a.spec.containers, function(e) {
-if (k(e)) {
-var t = m.createVolumeMount(o, i, c, l);
-e.volumeMounts || (e.volumeMounts = []), e.volumeMounts.push(t);
-}
-});
+if (i && !I(a, o, i, c, l)) return void (n.disableInputs = !1);
 var p = m.createVolume(o, r);
-a.spec.volumes || (a.spec.volumes = []), a.spec.volumes.push(p), s.update(v, e.metadata.name, n.attach.resource, d).then(function() {
+a.spec.volumes || (a.spec.volumes = []), _.some(a.spec.volumes, {
+name: p.name
+}) || a.spec.volumes.push(p), s.update(v, e.metadata.name, n.attach.resource, d).then(function() {
 var e;
 i || (e = "No mount path was provided. The volume reference was added to the configuration, but it will not be mounted into running pods."), u.addNotification({
 type: "success",
diff --git a/dist/scripts/templates.js b/dist/scripts/templates.js
index 678e19ff91..e8a7485f89 100644
--- a/dist/scripts/templates.js
+++ b/dist/scripts/templates.js
@@ -990,7 +990,7 @@ angular.module('openshiftConsoleTemplates', []).run(['$templateCache', function(
     "</div>\n" +
     "<div class=\"form-group mar-top-xl\">\n" +
     "<label for=\"mount-path\">Mount Path</label>\n" +
-    "<input id=\"mount-path\" class=\"form-control\" type=\"text\" name=\"mountPath\" ng-model=\"attach.mountPath\" ng-pattern=\"/^\\/.*$/\" osc-unique=\"existingMountPaths\" placeholder=\"example: /data\" autocorrect=\"off\" autocapitalize=\"none\" spellcheck=\"false\" aria-describedby=\"mount-path-help\">\n" +
+    "<input id=\"mount-path\" class=\"form-control\" type=\"text\" name=\"mountPath\" ng-model=\"attach.mountPath\" ng-pattern=\"/^\\/.*$/\" osc-unique=\"existingMountPaths\" osc-unique-disabled=\"attach.overwrite\" placeholder=\"example: /data\" autocorrect=\"off\" autocapitalize=\"none\" spellcheck=\"false\" aria-describedby=\"mount-path-help\">\n" +
     "<div>\n" +
     "<span id=\"mount-path-help\" class=\"help-block\">Mount path for the volume inside the container. If not specified, the volume will not be mounted automatically.</span>\n" +
     "</div>\n" +
@@ -1020,7 +1020,7 @@ angular.module('openshiftConsoleTemplates', []).run(['$templateCache', function(
     "<div class=\"form-group\">\n" +
     "<label for=\"volume-name\">Volume Name</label>\n" +
     "\n" +
-    "<input id=\"volume-path\" class=\"form-control\" type=\"text\" name=\"volumeName\" ng-model=\"attach.volumeName\" osc-unique=\"existingVolumeNames\" ng-pattern=\"/^[a-z0-9]([-a-z0-9]*[a-z0-9])?$/\" maxlength=\"63\" placeholder=\"(generated if empty)\" autocorrect=\"off\" autocapitalize=\"none\" spellcheck=\"false\" aria-describedby=\"volume-name-help\">\n" +
+    "<input id=\"volume-path\" class=\"form-control\" type=\"text\" name=\"volumeName\" ng-model=\"attach.volumeName\" osc-unique=\"existingVolumeNames\" osc-unique-disabled=\"attach.overwrite\" ng-pattern=\"/^[a-z0-9]([-a-z0-9]*[a-z0-9])?$/\" maxlength=\"63\" placeholder=\"(generated if empty)\" autocorrect=\"off\" autocapitalize=\"none\" spellcheck=\"false\" aria-describedby=\"volume-name-help\">\n" +
     "<div>\n" +
     "<span id=\"volume-name-help\" class=\"help-block\">Unique name used to identify this volume. If not specified, a volume name is generated.</span>\n" +
     "</div>\n" +
@@ -1043,6 +1043,17 @@ angular.module('openshiftConsoleTemplates', []).run(['$templateCache', function(
     "<div class=\"form-group\">\n" +
     "<div class=\"checkbox\">\n" +
     "<label>\n" +
+    "<input type=\"checkbox\" ng-model=\"attach.overwrite\" aria-describedby=\"overwrite-help\">\n" +
+    "Overwrite\n" +
+    "</label>\n" +
+    "<div id=\"overwrite-help\" class=\"help-block\">\n" +
+    "Overwrite a volume mount if it already exists.\n" +
+    "</div>\n" +
+    "</div>\n" +
+    "</div>\n" +
+    "<div class=\"form-group\">\n" +
+    "<div class=\"checkbox\">\n" +
+    "<label>\n" +
     "<input type=\"checkbox\" ng-model=\"attach.readOnly\" aria-describedby=\"read-only-help\">\n" +
     "Read only\n" +
     "</label>\n" +