You receive the error message ‘Only one instance of the Array Configuration Utility can be running’ when opening the ACU utility on a HP Server


You receive the error message ‘Only one instance of the Array Configuration Utility can be running’ when opening the ACU utility on a HP Server.

ACU error message

This occurs when no other instance of the ACU utility is actually running.

It would seem that this effects, rather infuriatingly, Windows 2003 and 2008 servers with Internet Explorer 8 installed and ACU Version 8.25 (or earlier) for Windows 2003 and ACU Version 8.20 for Windows 2008.

To resolve this the version of the ACU utility needs upgrading to version 8.28 for Windows 2003 and 8.25 for Windows 2008.

Alternatively, you could uninstall Internet Explorer 8 and roll back to an earlier release.

HP have released an advisory here http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01763057

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10 thoughts on “You receive the error message ‘Only one instance of the Array Configuration Utility can be running’ when opening the ACU utility on a HP Server

    • Hallo,

      it fixed the problem with ACU, but I can’t see MSA, I can see local Array 6i only. Other HP Array tools like HP Array Diagnostic Utility and so on can see both. What should I do ?

      Thanks

  1. I tried this fix but still got the error message as before. After bashing my head against the wall for a while, I decided to treat the error message as if it was a fresh occurrence, not the original IE8 problem – i.e. “IS there actually another instance already running? What about the fact that iexplore.exe sometimes stays running even after the browser window is gone?”

    Bingo. Checked task manager, iexplore.exe was still running. End task, restart ACU and voila, it works!

    So, for any of you who are upgrading to the latest version (8.35 as I write this), and still find that this error persists, you may find that iexplore.exe is still running as a process, causing this Array Configuration Utility error message to persist.

    • Ash Dando – thanks!

      This fixed the issue for me. I did the same thing you did, uninstalled/reinstalled new version, but this was the fix.

      Thanks again!

  2. I was able to get around this issue by killing the iexplore.exe process from Task Manager. Did not need to upgrade the utility or reboot..

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