Issue deploying a SonicWall NSv on a VMware ESXi Host due to OVA File.

SonicWall NSv virtual firewalls can be deployed on VMware ESXi by importing an OVA package. 

However, this article explains how to deploy the NSv and how to resolve the disk image error that may appear during initial deployment.
At the time this article was created, the deployment was performed using NSv version 7.3.1 on an ESXi Host Client running version 7.0.3.

Prerequisites

1. Review System Requirements

Before deployment, verify CPU, memory, storage, and supported hypervisor requirements.

SonicWall NSv 270/470/870 Datasheet:

https://www.sonicwall.com/resources/datasheet/sonicwall-nsv-270-470-870

2. Download the OVA Package

Download the NSv OVA file from MySonicWall.

Example file used in this guide: nsv-vmware.7.3.1-7013-R8777.ova (≈350 MB)

3. Extract the OVA File

Use ZIP, 7‑Zip, or WinRAR to extract the OVA into a folder. After extraction, you should see files such as .ovf , .vmdk, .mf, .cert, .nvram

These files will be imported into ESXi during deployment.

Deployment Steps (ESXi Host Client):

1. Open the VM Creation Wizard

In the ESXi Host Client, select: Create / Register VM

2. Choose the Deployment Method

Select: Deploy a virtual machine from an OVF or OVA file Click Next.

3. Name the Virtual Machine

Enter a name for the NSv instance.

Drag and drop the extracted files (.ovf, .vmdk, .mf, etc.) into the file selection area.

4. Select a Datastore

Choose the datastore where the virtual machine files will be stored. Click Next.

5. Accept the License Agreement

Review and accept the SonicWall license terms. Click Next.

6. Deployment Options

Leave the default settings:

• Disk provisioning: Thin
• Power on automatically: Enabled

In the Select networks screen:

1. Sort the list of interfaces by clicking the Source Network column heading.
2. Select the vSwitch networks that correspond to the NSv virtual machine interfaces.

• Source networks represent the NSv interfaces (X0, X1, X2, X3, X4, X5, X6, X7).
• Destination networks represent the vSwitch port groups in your ESXi configuration.

If your vSwitch networks are not fully configured, you can adjust the interface‑to‑vSwitch mappings after the import.

The NSv Series is typically deployed between your internal LAN network, and a network with internet access

• Map X0 → LAN vSwitch port group
• Map X1 → WAN vSwitch port group (with internet connectivity)

7. Additional Settings

(Optional) Enter a SonicCore Hostname for the NSv appliance. Click Next.

8. Review and Deploy

Review the configuration summary.

Click Finish to begin deployment.

 Default Interface Configuration

X0 (default LAN interface):

• Default LAN IP: 192.168.168.168

X1 (default WAN interface):

• DHCP enabled by default
• HTTPS management enabled and ping management enabled

Once you access the firewall and confirm internet connectivity, do not forget to register the device on mysonicWall.com and from the firewall GUI using  your Sonicwall credentials.