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ESX System Analyzer

ESX System Analyzer


The ESX System Analyzer is a tool designed to help administrators plan a migration from ESX to ESXi. It analyzes the ESX hosts in your environment and, for each host, collects information on factors that pertain to the migration process:

  • Hardware compatibility with ESXi
  • VMs registered on the ESX host, as well as VMs located on the host’s local disk
  • Modifications to the Service Console
    • RPMs which have been added or removed
    • Files which have been added
    • Users and cronjobs which have been added

This tool also provides summary information for the whole existing environment

  • Version of VMware Tools and Virtual Hardware for all VMs
  • Version of Filesystem for all datastores

By having this information, administrators can determine what tasks need to be done prior to the migration. Examples include:

  • Relocate VMs from local datastores to shared datastores
  • Make note of what agent software has been added to the host and obtain the equivalent agentless version
  • Replace cronjobs with equivalent remote scripts written with PowerCLI or vCLI

System Requirements

The following are the requirements, to run ESX System Analyzer:

  • ESX System Analyzer virtual appliance specifications:
  • 20GB virtual disk
  • 512MB virtual memory
  • 1 vCPU
  • vCenter Server 2.5, 4.0, 4.1, 5.0
  • ESX Hosts 3.5, 4.0, 4.1
  • Username and password for a vCenter Server user with administrator access
  • Root password for all ESX hosts to be analyzed
  • Root SSH enabled on all ESX hosts to be analyzed

The ESX System Analyzer application is compatible with following browsers:
1. Internet Explorer 8
2. Internet Explorer 7
3. Mozilla Firefox 6.0.2
4. Chrome 13.0.782


Change Log


Charu Chaubal

Infrastructure Product Marketing
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26 thoughts on “ESX System Analyzer

  1. Terry

    I have installed the ESXi System Analyzer v1.0 and I am attempting to analyze my 5.1 ESXi server. However, it will not let me select the host in the Run Scan section. It allowed me to define the host in vCenter Details. It shows that it is powered on and that it has a Gray status.

    Can anyone please tell me what I’ve done wrong or have to do to get this to run properly?


  2. Sven

    Just wanted to know how to use it to check against the 5.1 HCL. Is it possible , are there any Instructions ?


  3. jason

    I keep getting Upgrade Advisor Exception : Exception : Unknown Exception Occured errors when I run my scans. Any suggestions?

  4. Sean Duffy


    Great fling – it has been quite useful for an upgrade I am doing. However, I noticed that a QLogic FC HBA in some of our hosts, which I manually checked against the 5.0 HCL (and what definitely not compliant with ESXi 5.0) is listed as compatible in my ESX System Analyzer report. The device driver being use in ESX is: ISP2312-based 2Gb Fibre Channel to PCI-X HBA. I know that this is not on the 5.0 HCL and I know that when installing ESXi 5.0 manually (I tried) the installer also warns that this HBA is not tested or supported in ESXi 5.0. It works, but obviosly not supported. Therefore the ESX System Analyzer report seems incorrect – just slightly worrying if some info is not correct as it could mean other devices listed as compliant may be incorrect.


  5. Forbes Guthrie

    My scans continue to fail. On the scan report it fails on “Scan vCenter Virtual Machine Step – Unknown Exception Occurred”. I’m only interested in running hardware scans against the hosts for HCL compatibility. Is there any way to exclude other scan types?

    1. Charu Chaubal

      There’s no way to exclude scan types. Can you go to “List Scans” and view the HCL Scan Report? Or is that not even available?

      1. Forbes Guthrie

        I can get the Scan Report. It lists the following:
        Scan Initialization – Completed
        Scan vCenter Verification Step – Completed
        Scan vCenter Datastore Step – Completed
        Scan vCenter Virtual Machine Step – Failed – Unknown Exception Occurred

  6. Paul

    I’m having the problem select the hosts under the cluster. It appears the checkbox is gray out for some reason….

    1. Robert

      I can’t even stop the job, therefore I can’t delete it, therefore i can’t start another job either. Not even a reboot of the server itself fixed the issue.

      1. Shikha

        Hi Robert,
        I’m from the support team of ESX System Analyzer tool and would like to analyze the issue you faced.
        First thing I would like to know is that were there any network connectivity issues for e.g no internet connection after the scan was started?
        Also please share the following details:

        1) The vCentre details, details on number of ESX hosts configured for that vCentre.
        2) I would also like to analyze the logs. The logs can be found under the following location in the ESX System Analyzer Appliance:

        At this location there is a file named as catalina.out.

        3) Also share an xml file named as jobsdata.xml located at the location:

        You can send the logs on my e-mail address: ShikhaH@InterraIT.com


  7. Adam Yager

    Please update the user guide.
    How do we login to the webpage once all other tasks are completed?
    I am sure we can figure the other stuff out.


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