No, it shouldn’t be necessary. Which is why I suggested deselecting and 
reselecting the drive in Time Machine preferences. You will not lose any of the 
data, but it might force the system to start purging the oldest backups as it 
should. My choice to manually delete my backups is exactly that, my choice. 
It’s not caused by the system. When I used smaller capacity drives in the past, 
the backups were automatically purged, but I have a 3 TB drive and I prefer 
removing year plus old backups myself.



Take Care

John D. Panarese
Director
Mac for the Blind
Tel, (631) 724-4479
Email, j...@macfortheblind.com
Website, http://www.macfortheblind.com

APPLE CERTIFIED SUPPORT PROFESSIONAL and Trainer

AUTHORIZED APPLE STORE BUSINESS AFFILIATE

MAC and iOS VOICEOVER TRAINING AND SUPPORT




> On Dec 29, 2020, at 1:55 PM, Steve Matzura <numb...@noisynotes.com> wrote:
> 
> The point is, we should not have to be doing this manually at all. According 
> to this article <https://support.apple.com/en-us/HT201250>,
> 
> 
> Time Machine automatically makes hourly backups for the past 24 hours, daily 
> backups for the past month, and weekly backups for all previous months. The 
> oldest backups are deleted when your backup disk is full.
> 
> 
> On 12/29/2020 1:38 PM, John Panarese wrote:
>>    Maybe, reselect the disk again and see if that causes it to start 
>> removing oldest backups? I’ve not encountered this. I usually  start 
>> deleting old backups myself at some point when they are beyond a year old.
>> 
>> 
>> Take Care
>> 
>> John D. Panarese
>> Director
>> Mac for the Blind
>> Tel, (631) 724-4479
>> Email, j...@macfortheblind.com <mailto:j...@macfortheblind.com>
>> Website, http://www.macfortheblind.com <http://www.macfortheblind.com/>
>> 
>> APPLE CERTIFIED SUPPORT PROFESSIONAL and Trainer
>> 
>> AUTHORIZED APPLE STORE BUSINESS AFFILIATE
>> 
>> MAC and iOS VOICEOVER TRAINING AND SUPPORT
>> 
>> 
>> 
>> 
>>> On Dec 29, 2020, at 1:30 PM, Steve Matzura <numb...@noisynotes.com> 
>>> <mailto:numb...@noisynotes.com> wrote:
>>> 
>>> I've had this problem probably since Sierra. My 3TB backup drive fills, and 
>>> even though Time Machine clearly stipulates that it will purge old backups 
>>> to create space for new ones, it just never does. If you've had this 
>>> problem, how did you solve it, other than manually trashing old backups you 
>>> no longer wanted?
>> 
> 
> 
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