Sierra system storage

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Sierra system storage

Jeremy Roussak
When I select “About this Mac” and click “Storage” and then “Manage”, the resulting dialog shows "System 298.7GB”. This is on a MacBook Pro, 4 years old, with a 512GB SSD.

298.7GB seems rather a lot: Apple’s documentation about this dialog has a tenth of that. What is covered by “System”? Can I reduce it?

A couple of screenshots are here:

<a href="https://www.dropbox.com/s/wyrel5fu4avt1f5/Screenshot 2017-10-26 09.17.33.jpg?dl=0" class="">https://www.dropbox.com/s/wyrel5fu4avt1f5/Screenshot%202017-10-26%2009.17.33.jpg?dl=0
<a href="https://www.dropbox.com/s/znp1yjc1agl1pim/Screenshot 2017-10-26 09.17.14.jpg?dl=0" class="">https://www.dropbox.com/s/znp1yjc1agl1pim/Screenshot%202017-10-26%2009.17.14.jpg?dl=0

Thanks

Jeremy


Jeremy Roussak






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Re: Sierra system storage

Al Varnell
On Thu, Oct 26, 2017 at 01:19 AM, Jeremy Roussak wrote:
When I select “About this Mac” and click “Storage” and then “Manage”, the resulting dialog shows "System 298.7GB”. This is on a MacBook Pro, 4 years old, with a 512GB SSD.

298.7GB seems rather a lot: Apple’s documentation about this dialog has a tenth of that. What is covered by “System”? Can I reduce it?

Make sure you wait until all other categories have been calculated. My System went from almost 300GB to 81GB  after Documents and Applications numbers posted. You can probably reduce it by using "Reduce Clutter", but results will differ for everybody.

Thanks

Jeremy


-Al-
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Al Varnell
Mountain View, CA







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Re: Sierra system storage

@lbutlr
In reply to this post by Jeremy Roussak
On 26 Oct 2017, at 02:19, Jeremy Roussak <[hidden email]> wrote:
> When I select “About this Mac” and click “Storage” and then “Manage”, the resulting dialog shows "System 298.7GB”. This is on a MacBook Pro, 4 years old, with a 512GB SSD.

How frequently does this laptop get backed up to Time Machine? macOS on portables will create local backups when it cannot reach a Time Machine backup.

***
Space reporting on macOS now is complicated and often doesn’t mean what you think it means.

For example, my 1TB SSD has 426GB used. Of that, 190GB is the /Users/ folder, Applications is 70GB (45GB of that is Word of Warcraft). /Library is 62GB and /System is 12GB.

If you’re paying attention, that is well short of 426GB, by nearly 100GB

Where’s the extra space? No idea. Snapshots and other data that is hidden from user space, evidently.

I can dig in and see that Spotlight is using 2.3GB and DocumentRevisions-V100 is using 2.7GB and /var/ is using 12GB. We’re still far short of the 426GB used.

--
Apple broke AppleScripting signatures in Mail.app, so no random signatures.




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Re: Sierra system storage

Al Varnell
On Thu, Oct 26, 2017 at 10:12 PM, @lbutlr wrote:
On 26 Oct 2017, at 02:19, Jeremy Roussak <[hidden email]> wrote:
When I select “About this Mac” and click “Storage” and then “Manage”, the resulting dialog shows "System 298.7GB”. This is on a MacBook Pro, 4 years old, with a 512GB SSD.

How frequently does this laptop get backed up to Time Machine? macOS on portables will create local backups when it cannot reach a Time Machine backup.

Actually, laptops create and retain hourly local snapshots regardless of whether or not it can reach Time Machine. That way the user is able to enter Time Machine when the computer is traveling. They are thinned when the drive's free space drops below a certain level and consolidated periodically into daily versions, then deleted after a week. See What  are  Local  Snapshots? <http://pondini.org/TM/30.html>


-Al-
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Al Varnell
Mountain View, CA







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Re: Sierra system storage

Jeremy Roussak
In reply to this post by @lbutlr
Every hour. During the week, when I’m at work, it’s connected to the TM drive all day; at night, I close it (without shutting it down) and leave it in a drawer. I take it home at weekends, so on Saturdays and Sunday’s it’s not backing up.

I wonder if it actually makes any difference whether or not the TM drive is connected. Aren’t local snapshots made anyway?


Jeremy

Jeremy Roussak



On 27 Oct 2017, at 06:12, @lbutlr <[hidden email]> wrote:

On 26 Oct 2017, at 02:19, Jeremy Roussak <[hidden email]> wrote:
When I select “About this Mac” and click “Storage” and then “Manage”, the resulting dialog shows "System 298.7GB”. This is on a MacBook Pro, 4 years old, with a 512GB SSD.

How frequently does this laptop get backed up to Time Machine? macOS on portables will create local backups when it cannot reach a Time Machine backup.

***
Space reporting on macOS now is complicated and often doesn’t mean what you think it means.

For example, my 1TB SSD has 426GB used. Of that, 190GB is the /Users/ folder, Applications is 70GB (45GB of that is Word of Warcraft). /Library is 62GB and /System is 12GB.

If you’re paying attention, that is well short of 426GB, by nearly 100GB

Where’s the extra space? No idea. Snapshots and other data that is hidden from user space, evidently.

I can dig in and see that Spotlight is using 2.3GB and DocumentRevisions-V100 is using 2.7GB and /var/ is using 12GB. We’re still far short of the 426GB used.

--
Apple broke AppleScripting signatures in Mail.app, so no random signatures.




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Re: Sierra system storage

Al Varnell
On Fri, Oct 27, 2017 at 02:12 AM, Jeremy Roussak wrote:
Every hour. During the week, when I’m at work, it’s connected to the TM drive all day; at night, I close it (without shutting it down) and leave it in a drawer. I take it home at weekends, so on Saturdays and Sunday’s it’s not backing up.

I wonder if it actually makes any difference whether or not the TM drive is connected. Aren’t local snapshots made anyway?

Yes they are. They are then copied to your TM drive when you connect it.

-Al-

Jeremy

Jeremy Roussak



On 27 Oct 2017, at 06:12, @lbutlr <[hidden email]> wrote:

On 26 Oct 2017, at 02:19, Jeremy Roussak <[hidden email]> wrote:
When I select “About this Mac” and click “Storage” and then “Manage”, the resulting dialog shows "System 298.7GB”. This is on a MacBook Pro, 4 years old, with a 512GB SSD.

How frequently does this laptop get backed up to Time Machine? macOS on portables will create local backups when it cannot reach a Time Machine backup.

***
Space reporting on macOS now is complicated and often doesn’t mean what you think it means.

For example, my 1TB SSD has 426GB used. Of that, 190GB is the /Users/ folder, Applications is 70GB (45GB of that is Word of Warcraft). /Library is 62GB and /System is 12GB.

If you’re paying attention, that is well short of 426GB, by nearly 100GB

Where’s the extra space? No idea. Snapshots and other data that is hidden from user space, evidently.

I can dig in and see that Spotlight is using 2.3GB and DocumentRevisions-V100 is using 2.7GB and /var/ is using 12GB. We’re still far short of the 426GB used.

--
Apple broke AppleScripting signatures in Mail.app, so no random signatures.



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Re: Sierra system storage

Rodney

> On Oct 27, 2017, at 11:48, Al Varnell <[hidden email]> wrote:
>
> Yes they are. They are then copied to your TM drive when you connect it.

I wonder about, "I close it (without shutting it down) and leave it in a drawer.” I assume the Mac goes to sleep. Perhaps Power Nap isn’t enabled, or the hardware doesn’t support it…




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Re: Sierra system storage

Jeremy Roussak
Yes, it goes to sleep. Power Nap is not enabled when running on battery.

Jeremy


Jeremy Roussak



On 27 Oct 2017, at 10:53, Rodney <[hidden email]> wrote:


On Oct 27, 2017, at 11:48, Al Varnell <[hidden email]> wrote:

Yes they are. They are then copied to your TM drive when you connect it.

I wonder about, "I close it (without shutting it down) and leave it in a drawer.” I assume the Mac goes to sleep. Perhaps Power Nap isn’t enabled, or the hardware doesn’t support it…



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