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UAllowSystemSleepAgain error when backing up OS X Server.


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We have three OS X servers set to be backed up every night. Intermittently, the backup script fails to complete with the following error message at the bottom.

 

UAllowSystemSleepAgain: IOPMAssertionRelease failed, err = -536870199

 

Does anyone have any clue as to what the error message is trying to say? The servers are not set to sleep or to shutdown in any manner. The only power saving feature is to turn off the display after 10min.

 

Thanks for your time,

Mac

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This is the complete log:

---------------------------------------------------------------------------------------------------

+ Normal backup using Server_BKP at 12/9/14 (Activity Thread 1)

    To Backup Set Server_BKP...

    - 12/9/14 10:00:00 PM: Copying Apollo_Backup on Apollo

   12/10/14 6:01:10 AM: Execution stopped by operator

    Remaining: 499879 files, 27.8 GB

    Completed: 0 files, 0 B

    Performance: 0 MB/minute

    Duration: 08:01:08 (08:00:57 idle/loading/preparing)

 

UAllowSystemSleepAgain: IOPMAssertionRelease failed, err = -53687019

---------------------------------------------------------------------------------------------------

I wonder why it idled for 8 hours and didn't time out sooner?

 

Thanks for your time,

Mac

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What I see is that "Execution stopped by operator" at 6 AM.

 

THEN the error occurs, which I doubt is the cause of the problem. There are some debugging messages left in the released version of Retrospect. I assume this is one of them.

 

What happens at 6 AM? Retrospect server set to shut down or reboot?

 

If you watch the Retrospect server at 10-11 PM, what activities do you see? "Scanning", I assume, then possibly "Matching". Then what? (You could schedule a backup to a more convenient time and see what happens.)

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  • 2 months later...

To close out this question...

I found that the MacMini which is running Retrospect server was "scheduled" to restart every day at 6:00am. Not sure why we had set this up, but that is what was causing this particular error. Thanks for pointing in the right direction. 

 

Have a great day!

Mac

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