Good afternoon Following up with a solution for this.
The culprit ended up being Carbon Copy Cloner which was storing snapshots and they added up to over 360Gb. I found in CCC preferences that I could both delete old snapshots, but also reset the settings to leave 200Gb of space on the HDD instead of the preset 30Gb. I trust is useful. > On 16 Jan 2022, at 1:44 pm, Tim Law <[email protected]> wrote: > > Good afternoon, > > I am running OSX 12.1 Monterey on a 2017 iMac with a 1 TB SSD > > In About this Mac - Storage - it showing I have 387 GB of System Data > > One of the things I have found is a folder inside System/Library called dyld > that contains 28 GB of cache files. I poked around in here after googling > what could be hogging the disc space. One reference suggests I can delete > this cache files as the OSX will rebuild them as needed. That reference was > from 2012. Is that information still accurate or should I back out and stop > looking. > > Any other hints on the mysterious 387 GB on the disc. I use CleanMyMac and > that is supposed to clean extraneous files left from previous OSX. > > Thanks > > Tim > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug> -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
