Mac drives · case closed · PLY-2025-0621
After Ten Minutes She Pulled the Cable.
The Backup Plus spent ten whole minutes showing me that spinning colour wheel
one morning, so she pulled the cable out, convinced the Mac had hung
. After two more attempts it would not appear anywhere at all
. She teaches piano in Newquay; the drive rode to lessons and home again in a car boot. Eleven years of recordings were on it: the copies she sends her pupils home with. Nowhere else held a set.
Sounds like yours? Talk it through.
0800 6890668
Why it happens.
No Mac will display a volume until the catalogue has been read right through, and hers happened to lie straight over a stretch of surface on the way out. Those ten minutes therefore belonged to the disk rather than the computer: the same sectors asked for, declined, asked for again, with the Finder queueing behind. Then comes the natural response. Cable out, cable in, one more go — and each of those goes drags the heads back across the weakest ground on the platter. What reads slowly in March may not read at all by April.
The kit this job called for.
How the job runs →| The kit | What it did here | Why we keep it |
|---|---|---|
| DeepSpar Disk Imager 4 | Copied it gently, keeping every operating system away from the volume | Scores every head before it starts, works one surface at a time, and holds resets, timeouts and power in check |
| UFS Explorer Professional Recovery | Built the HFS+ volume again off the image, catalogue intact | Mounts what other software will not: APFS, ReFS, XFS, ZFS and Btrfs volumes |
| ACE Lab PC-3000 Express | Got in at service level and mapped the failing band below | Drops the disk into its maker's service mode, out of reach over plain ATA |
How it ran.
Booked in, and connected to no computer at all
On arrival the Seagate went onto bench hardware and stayed there; from that point nothing running an operating system was allowed near it. Service-level access named the trouble immediately — dead sectors, spreading outward, lying right where HFS+ puts its catalogue. There is the ten-minute wait accounted for, and the morning it stopped replying with it.
Take the metadata before the audio, and take it slowly
Order counted for more than speed on this one. Catalogue and metadata came off first, at low speed with retries kept short, since those small regions are what give each recording back its name and its lesson date. The audio came afterwards. And one thing is worth saying plainly: pulling that cable out had done no harm.
Every repair happened on the copy, none on the disk
No repair work was carried out on the Seagate; every operation ran against the finished image. Reverse that order and what comes back from eleven years is a pile of nameless files, rather than folders marked by pupil and by year. The names, the dates and the structure holding them came back alongside the audio.
How it ended up.
Her folder tree came back as she had built it, and she declined to sign anything off before playing lessons from three years on either side of the fault. Nine recordings returned cut short, all from the very worst of that band, and the report identifies each one.
Pages people open after this.
Other Apple jobs in the log.
Seeing the same thing?
Leave it switched off and post it in. Nothing happens until the diagnosis, which lists what can still be read and what cannot.