diff --git a/models/users.js b/models/users.js
index a5ba08f..605d3d3 100644
--- a/models/users.js
+++ b/models/users.js
@@ -64,7 +64,12 @@ const Users = sequelize.define(
     disk_size: {
       type: DataTypes.DOUBLE,
       allowNull: true,
-      defaultValue: 0,
+      defaultValue: 100000000,
+    },
+    used_capacity: {
+      type: DataTypes.DOUBLE,
+      allowNull: true,
+      defaultValue: 100000000,
     },
     is_admin: {
       type: DataTypes.BOOLEAN,
diff --git a/routers/users.js b/routers/users.js
index 9a07d72..86657ff 100644
--- a/routers/users.js
+++ b/routers/users.js
@@ -2,10 +2,15 @@ const Router = require("koa-router");
 const redisClient = require("../redis");
 const bcrypt = require("bcrypt");
 const jwt = require("jsonwebtoken");
+const { filesize } = require("filesize");
 const checkAdminAuth = require("../middleware/checkAdminAuth");
 require("dotenv").config({ path: ".env.local" });
 const Users = require("../models/users");
-const { USERS_LOGIN_POST, USER_REST_ID } = require("../types/schema/users");
+const {
+  USERS_LOGIN_POST,
+  USER_REST_PARAMS_PATCH,
+} = require("../types/schema/users");
+
 const { validateBody, validateParams } = require("../types");
 const { USER_STATUS, USER_ACTION_TYPES } = require("../constants/users");
 
@@ -77,9 +82,18 @@ router.post("/users", validateBody(USERS_LOGIN_POST), async (ctx) => {
     const { id, disk_size, status, created_at, login_at } = await Users.create({
       username,
       password: hashedPassword,
+      created_by: ctx.state?.user?.id ?? null,
     });
+
     ctx.status = 201;
-    ctx.body = { id, disk_size, status, created_at, username, login_at };
+    ctx.body = {
+      id,
+      disk_size: filesize(disk_size),
+      status,
+      created_at,
+      username,
+      login_at,
+    };
   } catch (error) {
     console.error(error);
     ctx.status = 500;
@@ -94,7 +108,10 @@ router.get("/users/info", async (ctx) => {
     });
     if (user) {
       ctx.status = 200; // 确保状态码为 200
-      ctx.body = user.dataValues;
+      ctx.body = {
+        ...user.dataValues,
+        disk_size: filesize(user.dataValues?.disk_size),
+      };
       return;
     }
     if (!user) {
@@ -139,7 +156,7 @@ router.delete("/sessions", async (ctx) => {
 // 禁用用户
 router.patch(
   "/users/:id/:action",
-  validateParams(USER_REST_ID),
+  validateParams(USER_REST_PARAMS_PATCH),
   checkAdminAuth,
   async (ctx) => {
     const { id, action } = ctx.params;
diff --git a/types/schema/users.js b/types/schema/users.js
index f158645..4bb7aa0 100644
--- a/types/schema/users.js
+++ b/types/schema/users.js
@@ -6,14 +6,19 @@ const USERS_LOGIN_POST = Joi.object({
   password: Joi.string().required(),
 });
 
-const USER_REST_ID = Joi.object({
+const USER_REST_PARAMS_PATCH = Joi.object({
   id: Joi.string().required(),
   action: Joi.string()
     .valid(...Object.keys(USER_ACTION_TYPES))
     .required(),
 });
 
+const USER_REST_ID = Joi.object({
+  id: Joi.string().required(),
+});
+
 module.exports = {
-  USER_REST_ID,
+  USER_REST_PARAMS_PATCH,
   USERS_LOGIN_POST,
+  USER_REST_ID,
 };