macOS 27 has changed log entries that confirm that an SSD is being trimmed correctly when it’s mounted. Full details explain how you can verify Trimming.
SSD
Mac prices have risen because supply of their high-speed memory, NAND chips for SSDs, and their SoCs has been outstripped by demand for data centres. When will this improve?
Trimming ensures an SSD can write data as fast as it can read it. Although most SSDs should be Trimmed when they’re mounted, if you’re unsure, here’s simple test to tell whether any SSD does Trim correctly.
How to optimise your Mac’s cooling using conduction, convection and radiation. Use physical principles to cope with extreme summer temperatures, and how you can work more comfortably as well.
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.
Trim enables an SSD to erase pages of unused memory so they’re ready for reuse. It saves time, and greatly improves write performance. How to the best out of Trim.
Does software encryption (APFS Encrypted) result in significant overhead when using faster SSDs with a faster Apple silicon Mac? What about computing SHA256 digests?
Why is an M2 Pro or Max preferable to an M1 Pro or Max? Is 8 GB of memory sufficient? Can I extend the internal SSD with an external drive? Can I buy and upgrade?
Deleting clone files saves no space, but converting copies into clones could free up plenty of storage. Sparse files can also be highly efficient, and squeeze 285 GB into just 16.5 GB.
