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Time Machine backup problem
Posted by: rouderon
Date: July 08, 2015 02:09PM
Have a 1gb external drive connected locally to my iMac via FW800. Latest backup was about 2 hours ago and, though nothing big has changed (other than a couple of Word files), it now says there's not enough space to do a backup. TM is showing 177 of 999 GB available (and I'm only backing up appx a half TB of data). It's as if I'm trying to backup a new machine to an old TM backup file. Also the 'verify backups' is greyed out when option-clicking TM - but I believe that's because it's connected locally (correct?). At this point do I wipe the drive and begin a brand new backup?
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Re: Time Machine backup problem
Posted by: N-OS X-tasy!
Date: July 08, 2015 02:26PM
How long has the drive in question been in service as a TM volume? While Apple uses certain techniques to minimize the amount of space required for TM backups, they are cumulative - the potential does exist over time to run out of space on the TM volume, even if the capacity of the volume(s) being backed up is less than the capacity of the TM volume.



It is what it is.
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Re: Time Machine backup problem
Posted by: rouderon
Date: July 08, 2015 02:47PM
It's been in service for several months and usually lets me know when it's full and is deleting the oldest backup. This time it refuses to do a backup.
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Re: Time Machine backup problem
Posted by: Onamuji
Date: July 08, 2015 07:57PM
Did you rename your Mac in the Sharing settings or rename your boot drive or rename a folder with a couple of hundred GB of files in it?



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Re: Time Machine backup problem
Posted by: rouderon
Date: July 08, 2015 08:49PM
No - unfortunately, nothing renamed. I think I'm going to just wipe & start over - can only assume it somehow corrupted :-(
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Re: Time Machine backup problem
Posted by: sekker
Date: July 09, 2015 07:42AM
TM drives sometimes get corrupted and just need to be reformatted. Happens,
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