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FYI -- Shadow Copies and DCPROMO

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  • FYI -- Shadow Copies and DCPROMO

    This one kept me busy all day, so I thought I'd share it with you....

    I had a server with volume shadow copies set up and running OK, and no issues reported in event logs. When it came to a problem which I thought I could deal with by restoring a previous version, I found the copies had not been made for several weeks (oh sh*t moment). Manual shadow copies worked fine... Eventually I found the task scheduler log reported "The attempt to retrieve account information for the specified task failed" and didnt bother to provide any more obvious alerts to a problem.

    After some research, I tracked down the issue at http://support.microsoft.com/kb/822904

    Basically, if you DCPROMO a server after setting up scheduled shadow copies, it will fail in this way -- the advice is to DCPROMO first, then set up VSC. Setting up a new schedule still fails but manual shadow copies work without problems. Fortunately the MS workaround (delete the crypto files in All Users) worked, but there were some (mainly mine) and a lot of cursing yesterday.

    Thank God for backups....

    Tom
    Last edited by biggles77; 1st April 2007, 07:39. Reason: Fixed one spelling error :)
    Tom Jones
    MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
    PhD, MSc, FIAP, MIITT
    IT Trainer / Consultant
    Ossian Ltd
    Scotland

    ** Remember to give credit where credit is due and leave reputation points where appropriate **

  • #2
    Re: FYI -- Shadow Copies and DCPROMO

    Nice. Will try it on a Server I am having VSS problems with when I am next on site. Never chased a fix as time never permitted. If this works, it shall be a large single malt when you visit OZ.
    1 1 was a racehorse.
    2 2 was 1 2.
    1 1 1 1 race 1 day,
    2 2 1 1 2

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