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vSAN Objects Viewer

version 1.5.7 — April 26, 2023

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  • profile picture of Chang WANG
  • profile picture of Chang WANG
  • profile picture of Chang WANG
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When troubleshooting vSAN issues, analyzing the cmmds-tools command output and local command outputs is essential to get a complete understanding of the vSAN environment. This includes information on the vSAN cluster, nodes, disk group, and objects. However, this manual process can be time-consuming. To save time and effort, we have developed a tool that quickly converts vSAN information from text to graphics, including:

  • vSAN cluster topology
  • vSAN nodes information
  • vSAN disk group information
  • VM and object composition
  • Component distribution and status

Compared to existing analyzers, our tool decodes more details on vSAN DOM and LSOM, such as type and status distribution, going beyond hardware information and deep into DOM objects. Our tool has three main functions:

  • vSAN cluster health information
  • VM and object information
  • Object distribution

We hope that our tool will enhance your efficiency when resolving vSAN-related issues.


Screenshot of the vSAN information tool


  • vSAN OSA 6.x/7.x/8.x
  • ESXi
  • Python 3


You can download the PDF instructions.

1. Deploying the Tool

To deploy the tool, follow these steps:

  1. Pull the Docker image by running the following command:
docker pull projects.registry.vmware.com/fling_vsan_objects_viewer/fling_vcmd:v1.5.7
  1. Deploy the container by running the following command:
docker run -d -p 30000:80 projects.registry.vmware.com/fling_vsan_objects_viewer/fling_vcmd:v1.5.7
  1. Access the tool by opening a browser and entering the correct IP address and port, for example, Replace "" with your IP address.

2. Pre-Deployment Requirements

Before using the tool, run the following command on any ESXi hosts within the vSAN cluster and download the output file to your local laptop or a remote web server:

cmmds-tool find -f json > /tmp/cmmds-tool_find--f-python.txt

3. Uploading Files

There are two methods for uploading the output file to the tool:

Method 1: Upload a Local File

  1. Open VCMD tool e.g.
  2. Click "Choose File" and select your output file on your laptop
  3. Click "Upload"

Method 2: Upload a Remote File

If you have a web server, you can import your output file using the following steps:

  1. Copy the URL of the cmmds-tool_find--f-python.txt file, for example:
  2. Paste the URL of the cmmds-tool_find--f-python.txt file into the tool.
  3. Click "Load Remote".

vSAN Viewer Overview

Once you've uploaded the output file, you can obtain a comprehensive overview of your vSAN cluster, including the following details:


More details can be found in vSAN Viewer Guide



Version 1.5.7

  • Updated Yaml file for K8S deployment in the manual guide.

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