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capacity

Estimating the remaining life of a Mac’s internal SSD

Making sense of the SMART indicators for NVMe SSDs, including all recent models fitted by Apple to Macs.

December 13, 2022 Macs, Technology

How to estimate an SSD’s working life

The life of an SSD should be more predictable than a hard disk. All you need is its TBW, and the total amount of data written to it so far.

December 5, 2022 Macs, Technology

Explainer: Disk free space

Confused by this on APFS? So you should be, as it’s complicated by features like snapshots, sparse files, and the file system itself. There’s no single figure.

December 4, 2021 Macs, Technology

Where are all those extended attributes?

I claimed (from a guess) that there might be 0.8 GB of xattrs in my Home folder. I was wildly wrong: there are actually over 3.8 GB. Here’s how xattrs are distributed.

February 14, 2018 Macs, Technology, xattr

Mystery Kilo

How many bytes are there in a kilobyte, and have you heard of a kibibyte?

July 15, 2015 Macs, Technology
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