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ClumsyPuffin
Asked: 2017-05-20 03:27:50 +0800 CST

dcdiag returning test failed and passed for same server

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I am getting 2 different test results for the same server in dcdiag /q /a (for all DCs in the site) and dcdiag /q /s:myserver.

dcdiag /q /a contains: ......................... myserver failed test RidManager (the same is true for other tests)

but dcdiag /q /s:myserver is not showing any failures.

So I tried removing the /q switch for the above command to see whether RidManager is passing with:

dcdiag /s:myserver, and it is showing myserver passed test RidManager.

As per the command help, /a for all servers in the site and /s for testing 1 particular server.

Why are the results different, and is it pass or fail ? Am I missing something?

windows

1 Answers

  1. DCDIAG checks specific services while it also checks the system logs for error events. If you had a RidManager critical event in your system logs, it would show a failure in the DCDIAG output, but would still show success if the RidManager is currently functioning OK. You can test for this by running dcdiag /a /n:DomainName /skip:systemlog.

    Have you tried clearing your DC's system log and running DCDIAG again?

    Do you get the same results if you run dcdiag /test:RidManager /s:servername and dcdiag /test:RidManager /a /n:DomainName?

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