docs: add wolf ebs support docs

docs/fundamentals/jcloud/advanced.md

@@ -8,7 +8,6 @@
 jc deploy flow.yml --env-file flow.env
 ```
 
-
 ### A project folder
 
 - You can include your environment variables in the `.env` file in the local project and JCloud will take care of managing them.
@@ -43,7 +42,40 @@ executors:
     jcloud:
       capacity: on-demand
 ```
-(jcloud-external-executors)=
+
+## storage resources
+
+We currently support 2 kind of storage type `ebs` and `efs`. The former one is block device and the second one is shared file system.
+
+`ebs` is block device attach to executor. It has better IO than `efs` but can't shared the data between executors, and can't reuse for other executor.
+
+`efs` is network file system shared between executors in flow. It can also resue for new flow so as to share the data between executor.
+
+`efs` is default storage type if you don't specify the type. The minimal of storage  `size`  is `1G`, and maximum of `size` is `10G`
+
+```
+jtype: Flow
+with:
+  protocol: grpc 
+executors:
+  - name: simpleindexer
+    uses: jinahub+docker://SimpleIndexer
+    jcloud:
+      resources:
+        memory: 1G
+        storage: 
+          type: ebs
+          size: 10G
+  - name: simpleindexer1
+    uses: jinahub+docker://SimpleIndexer
+    jcloud:
+      resources:
+        memory: 1G
+        storage: 
+          type: efs
+```
+
+
 ## Deploy external executors
 
 You can also expose only the Executors by setting `expose_gateway` to `False`. Read more about {ref}`External Executors <external-executors>`
@@ -61,7 +93,6 @@ executors:
 :width: 70%
 ```
 
-
 Similarly, you can also deploy & expose multiple External Executors.
 
 ```yaml
@@ -78,6 +109,7 @@ executors:
 ```{figure} external-executors-multiple.png
 :width: 70%
 ```
+
 ## Deploy with specific `jina` version
 
 To manage `jina` version while deploying a Flow to `jcloud`, you can pass `version` arg in the Flow yaml.
@@ -102,4 +134,4 @@ jcloud:
 executors:
   - name: custom
     uses: jinahub+docker://CustomExecutor
-```
+```