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APFS

Bookmarks, a type of Alias: their access and use

They’re Base-64 encoded data which is related to the Finder Alias. Here’s how to resolve them in an app, at the command line, and in code.

May 21, 2020 Macs, Technology

Snug sparse bundles work better, but…

Is it better to make sparse bundles ‘snug’, sizing them so that they don’t have as much free space? What if you then need to resize them?

May 16, 2020 Macs, Technology

Sparse bundles leak space

They readily grow in size up to their maximum. But getting them to shrink when contents are reduced isn’t as easy.

May 15, 2020 Macs, Technology

File Integrity 12 : Error correction for large files

Can you use error-correcting code to repair very large files, for example of around 20 GB or more?

May 5, 2020 Macs, Technology

File Integrity 11 : Which RAID levels enable file recovery?

Selecting a RAID level to preserve file integrity can be confusing. Here’s a guide, complete with the ifs and buts.

May 2, 2020 Macs, Technology

Sparse bundles: what they are and how to work around their bugs

T T Read More

An efficient means of storage with many uses, but riddled with bugs and shortcomings. Explains how to compact and resize them, and more.

April 27, 2020 Macs, Technology

Last Week on My Mac: Why file integrity is important

For all their compactness and ease of access, are our files going to prove less durable than a clay tablet recording a commercial transaction over 4,000 years ago?

April 26, 2020 General, Macs, Technology

File Integrity 5 : How well does error-correcting code work?

Simply having ECC enabled doesn’t mean that damaged files can be recovered. It appears promising, but needs careful real-world evaluation.

April 20, 2020 Macs, Technology

Last Week on My Mac: Vandalism

We assume what we know to be impossible, and pretend that just making ‘safe’ copies of important documents will preserve them for the future.

April 19, 2020 Macs, Technology

How apps save changed files

Apps don’t work like the Finder. Most use ‘safe saves’ designed to prevent a failed save losing the original document. Here’s how they work.

April 17, 2020 Macs, Technology

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