In APFS, containers, volumes and folders have different properties and features. Choosing the right one, and setting any size options, is an important step in good storage management.
storage
What happens when a Mac runs out of free space in the container of its boot volume group? This shows what you can expect to see, and what happens in the log.
You’re running out of free space, so check in Storage settings to see where it has all gone. System Data has reached 50 GB, but what is that, and what should you do to reduce it?
Major improvements in its plots make this new utility even better for tracking changes in used space, and so forecasting how long backup storage will take to fill.
Nine days of measurements of used space on a Time Machine backup storage drive. What does DeltaFree predict for its lifetime? How does used space change in containers in the internal SSD?
Does your backup storage really need to be twice the capacity of your Mac’s internal SSD? If you’re already backing it up you can estimate the size required more accurately, as given here.
Doesn’t macOS wear out internal SSDs quickly because of all the data it writes to them? Will my Mac’s SSD wear out prematurely? How can I tell?
How to connect 4 NVMe SSDs to no more than 2 ports on a Mac mini? If you can accept slower transfer speeds, an OWC 4M2 can do it at a fraction of the cost.
Fundamentally simple: a preserved copy of a volume at a moment in time. How its size can only increase with time, how they’re managed, what they’re used for, and the tools for using them.
It was notorious for its crashes and reporting discrepancies, but now it’s incorporated in System Settings it’s more reliable and helpful. But there’s still the problem of System Data.
