vSAN Support Insight

Benefits of vSAN enhanced support

Information on the how vSAN enhanced support can help your environment perform it's best.

Overview of support benefits

vSAN Enhanced Support

vSAN Support Insight is a next-generation platform for analytics of health, configuration, and performance telemetry. It’s purpose is to help vSAN users maintain a reliable and consistent computing, storage and network environment.

How it works

It is a phone home system leveraging the existing vCenter Customer Experience Improvement Program (CEIP). Health, performance, and configuration information for VMware Support and engineering. Once enabled and verified, log information is pushed back to VMware’s Analytics Cloud on a regular cadence. No actual customer data is phoned home and user enterable or identifiable data (Hostnames, VM names, subnets, IP addresses, Mac addresses) are obsfucated. 

How this benefits VMware customers

Immediate awareness of the state, configuration, and history of an environment delivers faster time to resolution on support tickets.

Avoiding the need for initial log collection should lower the operational requirements for running a VMware powered HCI environment.

Engineering is looking to identify and fix bottlenecks, and issues before they impact customers. Problematic software, hardware issues can be identified at scale through correlation of faults between multiple customers with similar configurations.

The vSAN team is working with VMware Skyline to use Support Insight for shifting Premier support services to a less reactive support experience.

vSAN online health checks today allow VMware to push out new recommendations that have been identified to be high impact for vSAN customers. The addition of vSAN Support Insight provides the ability for engineering to model the impact of new vSAN Online Health Checks across customer environments, and GSS to test them before they roll out to customers. Testing against the phone home data allows for refining of tighter thresholds to avoid false positives and negatives as well as the ability to measure the scale and impact of an issue. 

As of vSAN 6.7 Update 3 vSAN Support Insight information, status, and configuration is displayed at the following locations

vCenter Level

  • Day 0:  During the initial configuration of a vCenter Server
  • Day 2:  In vCenter under Menu > Administrations > Deployment > Customer Experience Improvement Program

Cluster Level

  • Day 1&2:  Running the Cluster Quickstart wizard in vCenter, from the Cluster > Configure > Configuration > Quickstart location
  • Day 2:  Click on Configure > vSAN > Services > Support Insight (will only show up if disabled)
  • Day 2:  Click on Monitor > vSAN > Health > Online Health Availability > Customer Experience Improvement Program


How is this being leveraged for support?

For customers with production support, this is being integrated for reactive support purposes.

Who can use it?

All vSAN customers with an active support contract running vSphere 6.5 Patch 2.

What additional Support options exist?

This is currently being integrated into Skyline and Premier support. Examples of premier support levels are as follows:

For a larger overview of how engineering and others will use the data, see this guide.

What protocol is used for the vSAN CEIP data?

It is transferred using SSL (HTTPS) from the vCenter Server. This will leverage a proxy if configured for the vCenter server. For information on troubleshooting the network connectivity see this guide.

Where is CEIP data transferred to?

It is specifically sent to https://vcsa.vmware.com For specific firewall and network information, please see the following guide.

Is data from inside VMs, Virtual Machine Names, IP Address's, Hostnames, or any user configured information phoned home as part of vSAN Analytics?

No. vSAN is currently using CEIP data for Configuration, Health, and performance telemetry. Information with unique information is obfuscated. For more information on how to view the data sent home see this guide of how to export the JSON files. For more information on the CEIP program see the CEIP FAQ. Also, the CEIP homepage has more information regarding what is being collected and its purpose.

Sample Views of vSAN support tools

Example's of support views

Note: that customer Hostnames and virtual machines are by default obsfucated to a "Host-number" or "VM-Number".

Support has visibility of customer health checks.

Performance Graphs

Views of Health Checks

Customer Environment Views:

Compare the above to the customer environment tools:

"Customer Environment Views"

CEIP configuration and information

Customers often want to know what a phone home system is sending back. CEIP is anonymized. Find a sample export here as well as information on how to configure, and export it.

Setup, Configuration and Networking Requirements

How to enable the vSAN Online Health Workflow


This document covers how to:

  • configure the firewall or proxy
  • enable CEIP
  • perform a test upload
  • validate that the upload worked.
  • troubleshoot connectivity issues


  • vSAN Online Health needs to connect to  "https://vcsa.vmware.com"  and  "http://www.vmware.com"  to perform online health checks.
  • If the system uses a firewall or a proxy to connect to the internet, then a firewall/proxy rule allowing outbound traffic through for  "https://vcsa.vmware.com:443/ph/api/*"  is required
  • Note: vCenter 6.5U1 has a known issue with CEIP failing when a proxy is in use. This will be resolved in a future patch, but a workaround is available from support.

Step 1: Check CEIP status

In the vSAN Health checks, a CEIP check shows the CEIP status. If CEIP is disabled, click  'Configure CEIP'  button or  'Enable Online Health'  Button, which will navigate to the CEIP page to opt in.

Step 2: Trigger the first upload

Once you have enabled CEIP, click the  'Retest'  Button. A new check appears in Online health called "Online health connectivity", and the  'Enable Online health'  button changes to  'Retest with Online health'  . click this button to trigger the first upload.

Step 3: Check the Online health work properly

Once the  'Retest with Online health'  button is clicked, this button changes to gray, and an online health check task is triggered.

Once the online health check task is done, the task status is 'Completed', and  'Retest with Online health'  button is back to normal, and new health checks appear in the Online health group with the group name updated last check time.


If connectivity is failing, you can SSH into the vCenter and try to communicate with the CEIP webserver using the following command.

 curl -v      https://vcsa.vmware.com:443  " 

If you see "fail to connect", further tests of dns or connectivity may be needed.

To test DNS connectivity use the following command.

 "nslookup vcsa.vmware.com " 

Known Issues

vCenter 6.5 Patch 2 is required to work with a vCenter Proxy.

Export of CEIP

Online Health checks collect data from the environment and send it to VMware cloud to perform health checks. The information below helps you understand how to inspect what telemetry data a live environment is sending.  You can check the data collected as a part of health checks as follows:

Linux Environment:

  1. SSH into VCSA
  2. Run command: cd /var/log/vmware/vsan-health/
  3. Data collected by online health checks is written and gzipped to files <uuid>cloud_health_check_data.json.gz" and <uuid>vsan_perf_data.json.gz
  4. You can extract the json content by calling gunzip -k <gzipped-filename> or view the contents by calling zcat <gzipped-filename> "

Windows Environment:

  1. Login to Windows vCenter machine.
  2. Open C:\Program Files\VMware\vCenter Server\logs\vsan-health "
  3. Data collected by online health checks is written and gzipped to files <uuid>cloud_health_check_data.json.gz and <uuid>vsan_perf_data.json.gz "
  4. You can use 7zip or any other utilities to unzip the gzipped files

Data collected is obfuscated to comply with CEIP. All private data is obfuscated. You can find the obfuscated data mappings in files <uuid>_obfuscationTableForHuman.json.gz .

Sample exports can be downloaded from here.

Note: The obfuscation mapping files are not sent to VMware. Only obfuscated data is sent to VMware.

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