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Time Machine - Running Too Often?

jdag

I have an Apple Time Capsule and am backing up 4 Macs to it.  3 of the Macs seem to be operating perfectly, but on my MacBook Air, I am seemingly running Time Machine backups nearly continuously.  I faced this problem about a month ago and reformatted the Time Capsule to start fresh.  I verified all disks.

For instance, I noticed a backup running tonight, and it finished at 7:18pm.  I immediately went into System Preferences and then the Time Machine Preferences pane and noticed that the Last Backup was listed properly as 7:18pm, and the next backup was listed as being scheduled for ~8:40pm.

At ~7:45pm, I noticed that the Time Machine icon in my status bar was spinning, and another backup was taking place.  I entered the Time Machine Preferences pane again and it indicated that 87.7MB was being backed up.  Then, immediately after that 87.7MB another backup was processed, this time for 79.2MB.  Overall, the process lasted approximately 40 minutes.

Once it ended, I checked the Preference pane again, and it indicated that Last Backup was 8:10pm, next 8:40pm.  At 8:40pm it ran again, and at this point it is a bit after 9pm and still running.  I basically have not touched the computer, altered files, etc.

The only thing I can think of is that I have Sophos anti virus 7.3.10 running on this particular computer (it is work-related computer).

Any thoughts?  Thank you in advance.

John

:1006565


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  • 0

    It sounds like it's taking so long for your backups to complete that the next one starts shortly after the previous one finishes... SAV *shouldn't* impact this, but there's always the chance that you're an edge case where some file that's being backed up is being intensively scanned before the backup process can grab it.  To test this, disable on-access scanning prior to one of these backups, and see if the backup speed improves.  Then re-enable it and see if the problem resurfaces.

    :1006611
  • 0

    I ended up deleting my Time Machine backup completely and started a fresh copy.  I also ran a full scan of my drive and currently I have Sophos on-access scanner off.  I re-ran the Time Machine backup to create a new sparsebundle, and it seems to be working fine now.  Again, on-access scanning is off, so I am not thrilled with this solution.

    :1006635
  • 0

    Scheduled scanning will help, but I'd suggest trying on-access again to see if the problem reappears.  It's possible that there was some corruption on your previous sparse bundle.

    :1006689