File lost after power cut

jamesconnolly
jamesconnolly
in SecuritySpy

Was having some work done in the house so had to turn power off for 20mins. I have two cameras recording continuously 24/7 onto Mac Mini M1.The continuous recording files from before the power outage are missing (for that day only). All previous days are still there.

I went into the MacMini and looked into the external SSD and the files do indeed appear to be missing. When an unfinished file is suddenly stopped (no power) is it discarded ? It then starts a new unfinished file when it boots up. Is that the correct behaviour or is there a setting that allows the interrupted unfinished file to be reused and just added onto.

Thanks James

Comments

  • Ben
    Ben

    Hi James,

    Files are never discarded by SecuritySpy in this situation. A power outage will leave damaged files, and when SecuritySpy next starts up, it will detect this, and attempt to automatically repair the files. If this fails, the damaged file could be recovered using a utility such as Movie Fixer. But, something may have gone wrong at a deeper system level here to result in these missing files. If you can email us and send us a debug file (SecuritySpy menu > Debug > Create Debug File On Desktop), we will check your settings and other aspects of your machine such as the format of your disks, to see if we can make any recommendations.

    A settings tweak that can really help to reduce the impact of these kinds of problems is to get SecuritySpy to start a new Continuous Capture file every hour. Then, in case of a power outage or other problem, you will lose a maximum of 1 hour only if all else fails with the automatic file recovery.

  • jamesconnolly
    jamesconnolly

    Ben,

    Thanks for the reply, It was really out of curiosity more than anything I asked the question. Thankfully I rarely have a power outage. If it happens again I'll send the debug file.

    Thanks James

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