How to Troubleshoot vCenter 8 Encountered an Internal Error

You’re probably looking for the solution for “vCenter 8 Encountered an Internal Error”, this article delves into the common issue of this error, shedding light on why such errors occur and providing practical steps to troubleshoot and resolve them effectively.


By Zelia / Updated on September 18, 2023

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Why vCenter 8 encountered an internal error

The installation of vCenter server failed due to an internal error, this situation can happen for various reasons, and diagnosing the exact cause can require a more detailed analysis of the specific error message, logs, and the environment in which vCenter is running. Here are some common reasons why vCenter sever appliance stage 2 failed and encounter internal errors:

  • Software Bugs: These bugs may be specific to the version you're using. It's essential to keep your vCenter installation up to date with the latest patches and updates, as these often include bug fixes.
  • Resource Constraints: Ensure that your vCenter server has adequate resources to handle the workload, especially in larger environments.
  • Database Issues: vCenter relies heavily on its database. If there are problems with the database, it can lead to internal errors. Regular database maintenance and monitoring are essential.
  • Networking Issues: Networking problems, including misconfigurations, connectivity issues, or firewall rules blocking communication, can impact vCenter's functionality and lead to errors.


How to troubleshoot internal errors in vCenter

Troubleshooting internal errors in VMware vCenter is a critical skill for you to ensure the stability and performance of your virtualized environments. Internal errors can occur for various reasons, including software bugs, resource limitations, misconfigurations, or database issues. Here's a step-by-step guide on how to troubleshoot internal errors in vCenter:

1. Check Logs: Start by reviewing the vCenter Server logs for error messages and stack traces. Logs often contain valuable information about the root cause of the problem. Look for log files in the vCenter installation directory.

2. Update and Patch: Ensure you are using the latest version of vCenter and have applied all relevant patches and updates. Software updates typically include bug fixes that can resolve known issues.

3. Resource Monitoring: Regularly monitor system resources on the vCenter server to ensure they are within acceptable limits. If resources are running low, consider upgrading the hardware.

4. Database Health: Verify the health of the vCenter database and perform routine maintenance tasks to keep it in optimal condition.

5. Review Configuration: Carefully review vCenter's configuration settings and consult VMware's documentation for best practices. Correct any misconfigurations.

6. Security and Permissions: Review user permissions and security settings to ensure they are correctly configured. Ensure that vCenter has the necessary privileges to access resources.

7. Networking and Firewall: Check network connectivity and firewall rules to guarantee vCenter can communicate with other components without hindrance.

Convert VCSA OVA to OVF using OVFTool to solve “Encountered an Internal Error”

Converting a VCSA OVA to OVF can be useful when you encounter issues during deployment or want to modify the virtual machine's configuration before deployment. Converting to OVF format can sometimes help resolve issues like "Encountered an Internal Error." Here are the steps to convert a VCSA OVA to OVF:

✾ Download and Install VMware OVF Tool

1. Begin by downloading the VMware OVF tool from VMware Website.


2. After successfully installing the VMware OVF Tool, navigate to the installation directory using the "cd" command. By default, the installation directory is as follows:

cd “C:\Program Files\VMware\VMware OVF Tool”

✾ Discover the VM Path using the OVF Tool

To export a virtual machine to an OVA file using the VMware OVF Tool, you need to execute ovftool.exe while providing the vCenter URL, credentials, and the path to your virtual machine. To determine the VM path, you can utilize the OVF Tool for discovery.

1. In case you are uncertain about the VM's path, you can initiate the discovery process. For instance, input the vCenter URL and credentials as follows:

ovftool.exe vi://

2. If the complete path does not correspond to a VM, the tool will generate an error message indicating a "wrong kind of object," such as a folder or a datacenter.

It will propose potential completions, which represent objects beneath the entered path. Continue adding completions until you reach the "VM" folder and select the desired virtual machine.


3. To list the virtual machines running on the vCenter Server, you can execute the below command:

ovftool.exe vi:///DC-NAME/vm/


✾ Display the VM OVF details

Using the OVF tool, the default "vi" command provides a user-friendly presentation of the virtual machine's OVF details. To access the OVF details for the VM, you can execute the following command:

ovftool.exe vi:///DC-NAME/vm/vm-name


✾ Export VM to OVA using OVF Tool

1. To create an OVA file from a virtual machine, input "ovftool.exe vi://" followed by the VM path and designate a local file with a ".ova" extension at the destination.

ovftool.exe vi:////vm/vm-name


2. The process of exporting the virtual machine to an OVA file will conclude successfully. You will observe status indicators displaying "Transfer Completed" and "Completed Successfully."


3. Following the completion of the VM-to-OVA export, you will find the ".OVA" file stored in the specified directory that was defined during the conversion process.


✾ Export VM to OVF using OVF Tool

The process of exporting a virtual machine to OVF is akin to exporting it to OVA. Simply input "ovftool.exe vi://" followed by the VM path and the target directory. Notably, when using the OVF Tool, virtual machines are exported to .OVF files by default, eliminating the need to specify the .OVF file extension in this step.

ovftool.exe vi:////vm/vm-name


Reliable alternative to backup and restore VMware VM

In addition to troubleshooting internal errors, it's essential to have a robust backup and recovery solution in place to protect your VMware VMs. AOMEI Cyber Backup, a reliable VMware backup software, is a reliable alternative that offers comprehensive VM backup and restore capabilities. It provides the following benefits:

✧Auto VM Backup: Schedule VMware or Hyper-V virtual machine backups in batch without human errors and perform hot backup to keep business continuity.
✧Flexible vSphereBackup: Batch backup large numbers of VMs managed by vCenter Server, or multiple VMs on a standalone ESXi host.
✧Multiple Storage Destinations: Backup to a local drive, or network destinations like NAS.
✧Automated Execution: Scheduleto automate backups daily, weekly, and monthly with email notifications.
✧Backup Retention Policy: Delete unwanted or expired backups automatically.

AOMEI Cyber Backup supports VMware ESXi 6.0 and later versions. Please click the following button to download the 30-day free trial.

Download Free TrialVMware ESXi & Hyper-V
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*You can choose to install this VM backup software on either Windows or Linux system.

4 simple steps to perform VMware VMs backup and restore

Step 1. Access to AOMEI Cyber Backup web client, select Source Device, click VMware to Add VMware Device. Then Add vCenter or Standalone ESXi to add a host. And then click to Bind Device.


Step 2. Create Backup Task: Navigate to Backup Task and Create New Task. Then select VMware ESXi Backup for Backup Type. After that, set the Task Name, Device, Target, Schedule and Cleanup according to your need.


Step 3. Click Start Backup and choose Add the schedule and start backup now or Add the schedule only.


Step 4. When your backups are completed, it’s easy to restore entire virtual machines to another place when a disaster strikes. Navigate to Start Restore, you can change restore location here to create a new VM or restore virtual machines to another datastore/host.

  • Restore to new location: You can choose to restore the backup from any history version, and create an identical new VM in the same or another datastore/host.



Encountering internal errors in vCenter 8 can be frustrating, but with proper troubleshooting techniques, you can often identify and resolve the root causes. Regularly monitoring system resources, keeping your software up-to-date, and maintaining a healthy database are key steps in preventing and mitigating internal errors.

Additionally, having a reliable backup and recovery solution like AOMEI Cyber Backup ensures that your VMware VMs are protected from data loss, whether due to internal errors, hardware failures, or other unforeseen circumstances. By following best practices and leveraging the right tools, you can maintain a stable and secure virtualization environment with

Zelia · Editor
Zelia is an editor from AOMEI Technology.She mainly writes articles about virtual machine. Writing is one of her hobbies and she wants her articles to be seen by more people. In her spare time, she likes to draw and listen to music, and it is a pleasure for her to focus on her own world.