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sbrunner-atx
618bdd56bf
f3-drive-test-macos.sh drives a complete erase / f3write / f3read cycle on macOS with diskutil, adding what ad-hoc use of the tools tends to get wrong: - refuses to run on internal disks or partition slices, and asks for explicit confirmation naming the drive label before erasing - records the USB location ID and device serial number next to a user-chosen drive label, so logs stay attached to the physical drive even though macOS reassigns diskN numbers by connection order - unmounts and remounts between write and read so f3read measures the drive instead of the page cache - optional cooldown (--cooldown SEC, or --replug for a physical unplug) between write and read, and repeated read passes (--reads N), for diagnosing drives that drop off the bus under sustained I/O, e.g. from overheating: compare failure time across back-to-back passes - per-drive timestamped logs and a summary table of all read passes Only needs f3write/f3read (PATH or ../build), so it works on macOS with the stock tools, independent of the extra-tools port in #283. This grew out of diagnosing a batch of refurbished 128 GB drives where one unit passed a full 114 GB write but could not sustain more than about 90 seconds of reading before disconnecting - a failure mode that a single write/read pass with default settings does not isolate.