• Something is guzzling disk space

    From D.M. Procida@daniele-at-vurt-dot-org@invalid.com to uk.comp.sys.mac on Thu Aug 28 08:44:49 2025
    From Newsgroup: uk.comp.sys.mac

    I've always been a bit tight on storage on my MacBook, at 500GB.

    Lately though something has guzzled an extra ~40GB, and it's hard to know
    what.

    OmniDiskSweeper, which has always been useful, isn't able to peer into /var, and I suspect it's there (36 GB for Multipasss!), or in logs somewhere, that the storage is being consumed.

    A restart can claw back a few GB, but they disappear again soon.

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you recommend?

    Daniele
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  • From David Kennedy@davidkennedygm@gmail.com to uk.comp.sys.mac on Thu Aug 28 10:21:37 2025
    From Newsgroup: uk.comp.sys.mac

    On 28/08/2025 09:44, D.M. Procida wrote:
    I've always been a bit tight on storage on my MacBook, at 500GB.

    Lately though something has guzzled an extra ~40GB, and it's hard to know what.

    OmniDiskSweeper, which has always been useful, isn't able to peer into /var, and I suspect it's there (36 GB for Multipasss!), or in logs somewhere, that the storage is being consumed.

    A restart can claw back a few GB, but they disappear again soon.

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you recommend?

    Daniele

    I've always stuck to Daisy Disk when investigating that sort of thing...

    And they do a free trial.
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  • From David B.@BD@hotmail.co.uk to uk.comp.sys.mac on Thu Aug 28 14:01:02 2025
    From Newsgroup: uk.comp.sys.mac


    On 28/08/2025 09:44, D.M. Procida wrote:
    I've always been a bit tight on storage on my MacBook, at 500GB.

    Lately though something has guzzled an extra ~40GB, and it's hard to know what.

    OmniDiskSweeper, which has always been useful, isn't able to peer into
    /var,
    and I suspect it's there (36 GB for Multipasss!), or in logs
    somewhere, that
    the storage is being consumed.

    A restart can claw back a few GB, but they disappear again soon.

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you recommend?

    Daniele


    EfA+ Warning: Your Mac Is Secretly Hoarding Gigabytes!

    Hey Daniele,

    Before you dive into the steps below, know this: your Mac has been
    quietly stockpiling 36rC>GB of Multipass VMs, logs, and caches, like a
    digital squirrel hoarding nuts. EfE+N+A

    Read on carefully rCo these tips will help you rescue all that lost space
    and stop your Mac from silently guzzling storage like itrCOs a
    never-ending buffet.

    https://chatgpt.com/share/68b035ba-2778-8013-a88c-626d8761688f

    EfAe Mission Accomplished (Hopefully!)

    Congrats, Daniele! If your disk space starts looking healthy again, you
    can pat yourself on the back. If notrCa well, at least your Mac isnrCOt secretly hoarding any more rCLdigital snacksrCY without your permission. EfyA --- Synchronet 3.21a-Linux NewsLink 1.2
  • From TimH@thnews@poboxmolar.com.invalid to uk.comp.sys.mac on Thu Aug 28 19:10:58 2025
    From Newsgroup: uk.comp.sys.mac

    On 28 Aug 2025 at 9:44:49rC>am BST, "D.M. Procida" <daniele-at-vurt-dot-org@invalid.com> wrote:

    I've always been a bit tight on storage on my MacBook, at 500GB.

    Lately though something has guzzled an extra ~40GB, and it's hard to know what.

    OmniDiskSweeper, which has always been useful, isn't able to peer into /var, and I suspect it's there (36 GB for Multipasss!), or in logs somewhere, that the storage is being consumed.

    A restart can claw back a few GB, but they disappear again soon.

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you recommend?

    GrandPerspective is still going, and works fine for me.

    https://grandperspectiv.sourceforge.net/
    --
    TimH
    pull tooth to reply by email
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  • From David B.@BD@hotmail.co.uk to uk.comp.sys.mac,alt.computer.workshop on Thu Aug 28 21:44:41 2025
    From Newsgroup: uk.comp.sys.mac

    On 28/08/2025 14:01, David B. tried helping Daniele!

    On 28/08/2025 09:44, D.M. Procida wrote:
    I've always been a bit tight on storage on my MacBook, at 500GB.

    Lately though something has guzzled an extra ~40GB, and it's hard to know
    what.

    OmniDiskSweeper, which has always been useful, isn't able to peer
    into /var,
    and I suspect it's there (36 GB for Multipasss!), or in logs
    somewhere, that
    the storage is being consumed.

    A restart can claw back a few GB, but they disappear again soon.

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you
    recommend?

    Daniele


    EfA+ Warning: Your Mac Is Secretly Hoarding Gigabytes!

    Hey Daniele,

    Before you dive into the steps below, know this: your Mac has been
    quietly stockpiling 36rC>GB of Multipass VMs, logs, and caches, like a digital squirrel hoarding nuts. EfE+N+A

    Read on carefully rCo these tips will help you rescue all that lost space
    and stop your Mac from silently guzzling storage like itrCOs a never-
    ending buffet.

    https://chatgpt.com/share/68b035ba-2778-8013-a88c-626d8761688f

    EfAe Mission Accomplished (Hopefully!)

    Congrats, Daniele! If your disk space starts looking healthy again, you
    can pat yourself on the back. If notrCa well, at least your Mac isnrCOt secretly hoarding any more rCLdigital snacksrCY without your permission. EfyA

    ChatGPT was VERY helpful.

    See for yourself by following the link.
    --
    David
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  • From Martin-S@invalid@nomail.com to uk.comp.sys.mac on Fri Aug 29 15:41:22 2025
    From Newsgroup: uk.comp.sys.mac

    On 28 Aug 2025 at 08:44:49 GMT, "D.M. Procida" <daniele-at-vurt-dot-org@invalid.com> wrote:

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you recommend?

    I have often found the obscure 'System Data' to balloon to 80GB and more on
    our MBPs. (You can check in System Settings >General >Storage.)

    It seems to be a temporary storage for all sorts of things, TM snapshots etc., but it isn't user manageable. I once saw it drop dramatically as I was looking at the bar graphic :)

    Another place to check is ~/Library/Application Support/MobileSync/Backup
    I think, it can contain iOS updates and device backups.
    --
    Martin
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  • From nospam@nospam@de-ster.demon.nl (J. J. Lodder) to uk.comp.sys.mac on Fri Aug 29 20:41:11 2025
    From Newsgroup: uk.comp.sys.mac

    David B. <BD@hotmail.co.uk> wrote:

    On 28/08/2025 09:44, D.M. Procida wrote:
    I've always been a bit tight on storage on my MacBook, at 500GB.

    Lately though something has guzzled an extra ~40GB, and it's hard to know what.

    OmniDiskSweeper, which has always been useful, isn't able to peer into /var,
    and I suspect it's there (36 GB for Multipasss!), or in logs
    somewhere, that
    the storage is being consumed.

    A restart can claw back a few GB, but they disappear again soon.

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you recommend?

    Daniele

    May be Spotlight building its index files,
    if you have -lots- of text files.
    If you have an external volume those index files will be stored there,
    but while they are being built they grow on your systems disk.

    You can see in Activity Monitor if it is busy.
    (it will also slow your Mac down, while doing its thing)

    Jan
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  • From nospam@nospam@de-ster.demon.nl (J. J. Lodder) to uk.comp.sys.mac on Fri Aug 29 22:11:28 2025
    From Newsgroup: uk.comp.sys.mac

    Martin-S <invalid@nomail.com> wrote:

    On 28 Aug 2025 at 08:44:49 GMT, "D.M. Procida" <daniele-at-vurt-dot-org@invalid.com> wrote:

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you recommend?

    I have often found the obscure 'System Data' to balloon to 80GB and more on our MBPs. (You can check in System Settings >General >Storage.)

    It seems to be a temporary storage for all sorts of things, TM snapshots etc.,
    but it isn't user manageable. I once saw it drop dramatically as I was looking
    at the bar graphic :)

    Another place to check is ~/Library/Application Support/MobileSync/Backup
    I think, it can contain iOS updates and device backups.

    The amount of space given in the footer may be wildly unreliable.
    (and fluctuating)
    As for the System Data: A restart may liberate a lot
    of god only knows what in system files,

    Jan
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From RJH@patchmoney@gmx.com to uk.comp.sys.mac on Sat Aug 30 05:44:05 2025
    From Newsgroup: uk.comp.sys.mac

    On 29 Aug 2025 at 21:11:28 BST, J. J. Lodder wrote:

    Martin-S <invalid@nomail.com> wrote:

    On 28 Aug 2025 at 08:44:49 GMT, "D.M. Procida"
    <daniele-at-vurt-dot-org@invalid.com> wrote:

    It's a bit rubbish to have to go on a file hunt in 2025, but what do you >>> recommend?

    I have often found the obscure 'System Data' to balloon to 80GB and more on >> our MBPs. (You can check in System Settings >General >Storage.)

    It seems to be a temporary storage for all sorts of things, TM snapshots etc.,
    but it isn't user manageable. I once saw it drop dramatically as I was looking
    at the bar graphic :)

    I had a situation where, reading from Disk Utility, the 500GB SSD (Apple SSD/Container disk1/Macintosh HD) on my 2020 Intel iMac was showing 25GB available, 470GB used.

    In the Macintosh directory below was a volume (or partition?) called
    'Macintosh
    HD - Data' which showed 500GB capacity, 170GB available, 140GB purgeable,
    460GB used.

    The Purgeable Space then (over a day or so and a few restarts) changed to System Data, as reported in Disk Utility, at 160GB.

    60GB of this space was in a folder called 'Metadata'. In the end, from memory, I had a deletion spree, and simply binned a good deal of this system data and metadata.

    It was annoying as I only had about 200GB of 'used' space - OS, documents, and photos. Well over half the disk was taken up with what seemed to be some sort of system cache.

    Anyway, no harm arose, and I've since moved to a new Mini.


    Another place to check is ~/Library/Application Support/MobileSync/Backup
    I think, it can contain iOS updates and device backups.

    The amount of space given in the footer may be wildly unreliable.
    (and fluctuating)
    As for the System Data: A restart may liberate a lot
    of god only knows what in system files,


    Indeed. If anything the free space on this Mini increases by the day. I
    started at 500GB (of 1TB) free when I first set up the Mini about 6 months' ago. As at now, it's 640GB free according to Finder. I haven't deleted or changed anything - just use it normally, adding photos and documents most
    days. iCloud has remained stable.

    I've no idea what's going on. It all works so I just let it do its thing.
    --
    Cheers, Rob, Sheffield UK
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