> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/ras-admin-guide/parallels-ras-21-administrators-guide/load-balancing-and-halb/high-availability-load-balancing-halb/halb-device-status-and-version-number.md).

# HALB Device status and version number

HALB device status and version information can be verified in two places in the RAS Console, which are described below.

## **Site tab**

You can view HALB devices and related information on the **Site** tab in the RAS Console. To see it, navigate to **Farm** > **Site**. Note the **Agent** and **Agent Version** columns. The two columns are described below.

The **Agent column** can have the following values:

* **Not verified** (red) - The agent is not verified and cannot communicate. If you see this, verify the agent.
* **Needs update** (yellow) - The agent is functioning normally but is an older version. If you see this, you should update the agent to the latest version.
* **Agent OK** (green) - The agent is OK. No actions are necessary.

The **Agent Version** column displays the actual agent version, including the Parallels RAS version and build numbers.

You can also ping a HALB device by right-clicking it and choosing **Tools** > **Ping host**. For additional information about using the **Tools** menu and the **Ping** tool specifically, please see [**Computer management tools**](/landing/ras-admin-guide/parallels-ras-21-administrators-guide/common-management-tasks/computer-management-tools.md).

## **Devices tab**

The HALB devices agent status and version can also be viewed in the main HALB subcategory. To see it, navigate to **Farm** > **Site** > **HALB** and select the **Devices** tab. The agent information displayed here is the same as on the **Site** tab described above.


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