diff --git a/src/components/Form/index.jsx b/src/components/Form/index.jsx
index 99144218..3b78fcc6 100644
--- a/src/components/Form/index.jsx
+++ b/src/components/Form/index.jsx
@@ -268,6 +268,13 @@ export default class BaseForm extends React.Component {
     return null;
   }
 
+  getRightExtraSpan() {
+    return {
+      left: 18,
+      right: 6,
+    };
+  }
+
   getSubmitData(data) {
     return { ...data };
   }
@@ -709,11 +716,12 @@ export default class BaseForm extends React.Component {
       </Spin>
     );
     const onlyForm = !this.isModal || (this.isModal && !this.showQuota);
+    const { left, right } = this.getRightExtraSpan();
     const modalInner =
       this.isModal && !onlyForm ? (
         <Row justify="space-between" align="top">
-          <Col span={18}>{formDiv}</Col>
-          <Col span={6}>{this.renderModalRightExtra()}</Col>
+          <Col span={left}>{formDiv}</Col>
+          <Col span={right}>{this.renderModalRightExtra()}</Col>
         </Row>
       ) : null;
     return (
diff --git a/src/containers/Action/ModalAction/index.jsx b/src/containers/Action/ModalAction/index.jsx
index 5e817d05..5589fbba 100644
--- a/src/containers/Action/ModalAction/index.jsx
+++ b/src/containers/Action/ModalAction/index.jsx
@@ -42,6 +42,17 @@ export default class ModalAction extends BaseForm {
     return 'small';
   }
 
+  getRightExtraSpan() {
+    const size = this.getModalSize();
+    const isLargeSize = size === 'large';
+    const left = isLargeSize ? 20 : 18;
+    const right = isLargeSize ? 4 : 6;
+    return {
+      left,
+      right,
+    };
+  }
+
   static get showQuota() {
     return false;
   }
diff --git a/src/pages/storage/containers/Backup/actions/Create.jsx b/src/pages/storage/containers/Backup/actions/Create.jsx
index a504d73e..b0ec713f 100644
--- a/src/pages/storage/containers/Backup/actions/Create.jsx
+++ b/src/pages/storage/containers/Backup/actions/Create.jsx
@@ -16,34 +16,20 @@ import { inject, observer } from 'mobx-react';
 import { ModalAction } from 'containers/Action';
 import globalVolumeStore from 'stores/cinder/volume';
 import globalBackupStore from 'stores/cinder/backup';
-import { createTip, backupModeList, modeTip } from 'resources/cinder/backup';
+import {
+  createTip,
+  backupModeList,
+  modeTip,
+  fetchQuota,
+  getQuota,
+  getQuotaInfo,
+  checkQuotaDisable,
+} from 'resources/cinder/backup';
 import {
   isAvailableOrInUse,
   isInUse,
   volumeSelectTablePropsBackend,
 } from 'resources/cinder/volume';
-import globalProjectStore from 'stores/keystone/project';
-
-export const getQuota = (cinderQuota) => {
-  const { backups = {}, backup_gigabytes: gigabytes = {} } = cinderQuota || {};
-  return {
-    backups,
-    gigabytes,
-  };
-};
-
-export const getAdd = (cinderQuota) => {
-  const { backups, gigabytes } = getQuota(cinderQuota);
-  const { left = 0 } = backups || {};
-  const { left: sizeLeft = 0, limit } = gigabytes || {};
-  const { currentVolumeSize = 0 } = globalBackupStore;
-  const add =
-    left !== 0 && (limit === -1 || sizeLeft >= currentVolumeSize) ? 1 : 0;
-  return {
-    add,
-    addSize: add === 1 ? currentVolumeSize : 0,
-  };
-};
 
 export class Create extends ModalAction {
   static id = 'create';
@@ -66,10 +52,7 @@ export class Create extends ModalAction {
     globalBackupStore.setCurrentVolume({});
     this.store = globalBackupStore;
     this.volumeStore = globalVolumeStore;
-    this.state.quota = {};
-    this.state.quotaLoading = true;
-    this.projectStore = globalProjectStore;
-    this.getQuota();
+    fetchQuota(this);
   }
 
   get tips() {
@@ -87,9 +70,7 @@ export class Create extends ModalAction {
   static allowed = () => Promise.resolve(true);
 
   static get disableSubmit() {
-    const { cinderQuota = {} } = globalProjectStore;
-    const { add } = getAdd(cinderQuota);
-    return add === 0;
+    return checkQuotaDisable();
   }
 
   static get showQuota() {
@@ -100,38 +81,8 @@ export class Create extends ModalAction {
     return true;
   }
 
-  async getQuota() {
-    this.setState({
-      quotaLoading: true,
-    });
-    const result = await this.projectStore.fetchProjectCinderQuota();
-    this.setState({
-      quota: result,
-      quotaLoading: false,
-    });
-  }
-
   get quotaInfo() {
-    const { quota = {}, quotaLoading } = this.state;
-    if (quotaLoading) {
-      return [];
-    }
-    const { backups = {}, gigabytes = {} } = getQuota(quota);
-    const { add, addSize } = getAdd(quota);
-    const backupData = {
-      ...backups,
-      add,
-      name: 'backup',
-      title: t('Backup'),
-    };
-    const sizeData = {
-      ...gigabytes,
-      add: addSize,
-      name: 'gigabytes',
-      title: t('Backup gigabytes (GiB)'),
-      type: 'line',
-    };
-    return [backupData, sizeData];
+    return getQuotaInfo(this);
   }
 
   onVolumeChange = (value) => {
diff --git a/src/pages/storage/containers/Volume/actions/CreateBackup.jsx b/src/pages/storage/containers/Volume/actions/CreateBackup.jsx
index 902861e4..7a6671e4 100644
--- a/src/pages/storage/containers/Volume/actions/CreateBackup.jsx
+++ b/src/pages/storage/containers/Volume/actions/CreateBackup.jsx
@@ -16,7 +16,14 @@ import { inject, observer } from 'mobx-react';
 import { ModalAction } from 'containers/Action';
 import globalBackupStore from 'stores/cinder/backup';
 import { isAvailableOrInUse, isInUse } from 'resources/cinder/volume';
-import { createTip, backupModeList, modeTip } from 'resources/cinder/backup';
+import {
+  createTip,
+  backupModeList,
+  modeTip,
+  getQuotaInfo,
+  checkQuotaDisable,
+  fetchQuota,
+} from 'resources/cinder/backup';
 
 export class CreateBackup extends ModalAction {
   static id = 'create-backup';
@@ -70,6 +77,24 @@ export class CreateBackup extends ModalAction {
 
   init() {
     this.store = globalBackupStore;
+    globalBackupStore.setCurrentVolume(this.item);
+    fetchQuota(this);
+  }
+
+  static get disableSubmit() {
+    return checkQuotaDisable();
+  }
+
+  static get showQuota() {
+    return true;
+  }
+
+  get showQuota() {
+    return true;
+  }
+
+  get quotaInfo() {
+    return getQuotaInfo(this);
   }
 
   onSubmit = (values) => {
diff --git a/src/resources/cinder/backup.jsx b/src/resources/cinder/backup.jsx
index 4fab844d..0d10d1bb 100644
--- a/src/resources/cinder/backup.jsx
+++ b/src/resources/cinder/backup.jsx
@@ -15,6 +15,8 @@
 import React from 'react';
 import { getOptions } from 'utils/index';
 import { FolderOutlined, FolderAddOutlined } from '@ant-design/icons';
+import globalProjectStore from 'stores/keystone/project';
+import globalBackupStore from 'stores/cinder/backup';
 
 export const backupStatus = {
   available: t('Available'),
@@ -140,3 +142,66 @@ export const restoreTip = (
     </p>
   </span>
 );
+
+// deal with quota
+export async function fetchQuota(self) {
+  self.setState({
+    quota: {},
+    quotaLoading: true,
+  });
+  const result = await globalProjectStore.fetchProjectCinderQuota();
+  self.setState({
+    quota: result,
+    quotaLoading: false,
+  });
+}
+
+export const getQuota = (cinderQuota) => {
+  const { backups = {}, backup_gigabytes: gigabytes = {} } = cinderQuota || {};
+  return {
+    backups,
+    gigabytes,
+  };
+};
+
+export const getAdd = (cinderQuota) => {
+  const { backups, gigabytes } = getQuota(cinderQuota);
+  const { left = 0 } = backups || {};
+  const { left: sizeLeft = 0, limit } = gigabytes || {};
+  const { currentVolumeSize = 0 } = globalBackupStore;
+  const add =
+    left !== 0 && (limit === -1 || sizeLeft >= currentVolumeSize) ? 1 : 0;
+  return {
+    add,
+    addSize: add === 1 ? currentVolumeSize : 0,
+  };
+};
+
+export const getQuotaInfo = (self) => {
+  const { quota = {}, quotaLoading } = self.state;
+  if (quotaLoading) {
+    return [];
+  }
+  const { backups = {}, gigabytes = {} } = getQuota(quota);
+  const { add, addSize } = getAdd(quota);
+  const backupData = {
+    ...backups,
+    add,
+    name: 'backup',
+    title: t('Backup'),
+  };
+  const sizeData = {
+    ...gigabytes,
+    add: addSize,
+    name: 'gigabytes',
+    title: t('Backup gigabytes (GiB)'),
+    type: 'line',
+  };
+  return [backupData, sizeData];
+};
+
+export const checkQuotaDisable = () => {
+  const { cinderQuota = {} } = globalProjectStore;
+  const { add } = getAdd(cinderQuota);
+  return add === 0;
+};