# Overview of features

### Overview <a href="#tong-quan" id="tong-quan"></a>

vCloudStack is a hybrid cloud service designed to manage and extend GreenNode's infrastructure, services, and APIs to customers' premises. By providing local access to GreenNode's managed infrastructure, vCloudStack allows customers to build and operate on-premises applications using the same programming interfaces as in GreenNode, while using local resources and storage to reduce latency and meet local data processing needs.

Therefore, vCloudStack has the same basic features and characteristics as the service features that GreenNode's vServer is providing.

***

### Features <a href="#cac-tinh-nang" id="cac-tinh-nang"></a>

From this hybrid cloud model, GreenNode's vCloudStack provides the following features that you can use:

#### Server <a href="#server" id="server"></a>

* Initialize virtual server (VM);
* Create virtual server from Backup file;
* Create virtual server from Snapshot file;
* Create virtual server from Image file;
* Resize server;
* Update Security Group for Virtual Server;
* Turn off/on or restart the virtual server (Shutdown or Start or Reboot);
* Create Image from virtual server;
* Create backup file from virtual server;

#### BlockStores <a href="#blockstores" id="blockstores"></a>

* Create Volume drive (encrypted or unencrypted);
* Restore with Snapshot file;
* Expand Volume capacity;
* Attach/Deattach or Delete Volume

#### LoadBalancer <a href="#loadbalancer" id="loadbalancer"></a>

* Initialize LB with Network or Application type
* Create listener on created LB;
* Create Policy and Pool for LB;
* Adjust LB configuration (Resize);
* Double the new LB set;


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.vngcloud.vn/vng-cloud-document/vcloudstack/get-started-with-vcloudstack/overview-of-features.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.