> 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/deploying-a-parallels-halb-appliance.md).
# Deploying a Parallels HALB appliance
To download a Parallels HALB appliance, visit .
On the **Download Parallels Remote Application Server** web page, scroll down to the **Download Optional Server Components** table and find the **Parallels Remote Application Server HALB Appliances** row. The row contains the following download links:
* HALB Appliance OVA
* HALB Appliance VHD
* HALB Appliance QCOW2
The appliance type that you need to download depends on the hypervisor that you are using. Please follow the instructions below for your hypervisor type.
### **VMware**
For VMware, the appliance can be imported using the OVA appliance file. The VM is created pre-configured with 2 CPUs and 2048 MB of RAM (which can be changed later).
### **Microsoft Hyper-V**
For Microsoft Hyper-V, the appliance can be imported using the VHD file.
{% hint style="info" %}
**Note**: When setting up a Hyper-V machine, choose the **Generation 1** configuration options.
{% endhint %}
### **Nutanix AHV**
For Nutanix AHV, the appliance can be imported using the QCOW2 file. Once downloaded, follow the recommended steps:
1. From the **Prism Element Console**, navigate to **Settings** > **Image Configuration** > **Create Image** > **Upload a file** and pick the downloaded QCOW2 disk image.
2. Once successful, it should report its status as `ACTIVE`.
3. Navigate to **VM** > **Create VM**.
4. Under **Boot Configuration**, choose **Legacy BIOS**.
5. Choose **Add New Disk** and set the parameters as follows:
1. Set **Type** to `DISK`.
2. Set **Operation** to `Clone from Image Service`.
3. Under **Image**, select the previously added disk image.
6. Click **Add**.
7. Navigate to **VM** > `{VM_name}` > **Power On** > **Launch Console**.
### Scale HyperCore
For Scale HyperCore, the appliance can be imported using the QCOW2 file. Once downloaded, follow the recommended steps:
1. Navigate to **Control Center** > **Media** > **Upload**.
2. Click **Create VM**.
3. Set **Boot Type** to `BIOS`.
4. Under **Drive**, select the **Attach Uploaded Drive** option and pick the downloaded QCOW2 image.
5. Remove all other drives except for the one attached in the previous step.
6. Click **Create**.
### **Deploying a Parallels HALB Appliance**
After you download a Parallels HALB appliance, you need to import it to a hypervisor running on a separate machine connected to the same local network as Parallels RAS. For the information on how to import a virtual appliance, please consult your hypervisor documentation.
### HALB Device First Boot Configuration
1. Choose between static IP or DHCP.\
\
[**Note**: When using DHCP (default), the admin must make sure the IP of the HALB device does not change when the DHCP lease expires by adding a DHCP reservation.](#user-content-fn-1)[^1]\
2. For the static option, specify the network parameters.\
3. \[OPTIONAL] Configure mailbox notifications.
4. Wait for the HALB device to be ready for configuration from the RAS console.
5. In the **Advanced** menu, the following settings are available:
1. **Networking**. Reconfigure the network parameters of this device.
2. **Rescan**. Rescan the Appliance services state, since they don't refresh automatically.
3. **Reset**. Use to reset the existing Applicance configuration due to a glitch or adding it to a different HALB virtual server.
[^1]:
---
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