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copy on write

Is APFS doing its job? Big Sur edition

APFS is almost 4 years old, and set out to solve the problem of accumulation of minor errors which has plagued HFS+. Has it?

March 1, 2021 Macs, Technology

Card tricks with TextEdit, and saving files safely to SSD

Some simple card tricks using TextEdit files demonstrate that most current apps don’t use new features in APFS. But they’re still safe and efficient.

September 12, 2019 Macs, Technology

APFS, safe saves, inodes and the volfs file system

How can you refer to an important file or directory, no matter where it’s moved on a volume, even when it’s renamed?

September 4, 2019 Macs, Technology

Last Week on My Mac: Happy birthday APFS

iOS 10.3, released on 27 March 2017, thrust the new file system on a great many unsuspecting users. Apple chose a high risk strategy. Has it paid off?

March 17, 2019 Macs, Technology

Watching macOS file systems: FSEvents and volume journals

Explains how Time Machine knows what to back up, why it performs deep event scans, and how that system is different from HFS+ journaling.

September 12, 2017 Macs, Technology

What is ‘copy on write’, and how is it good?

One of the major ‘new’ features in the new file system coming in High Sierra. But how does it help the Mac user?

June 23, 2017 Macs, Technology
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