Older disks · head fault · ADR-2025-3157
You Could Have Set a Watch by It.
They had counted it, which is the part that made this easy. The FreeAgent is at least 15 years old
, it still powers up, and it no longer identifies itself to Windows
. What it does instead is make quiet clicking sounds in a pattern that repeats every 4 seconds or so
. Not a knock, not a grinding, nothing you would hear across a room. Most of what is on it they could do without; what they wanted was the quite a lot of family photos
, and there was no other copy of those.
Same story on yours? Tell us what it does — the look is free.
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What failed, and why.
A noise on a rhythm is a machine repeating itself. Every four seconds the heads went looking for the servo information that tells them their position over the surface, found nothing they could use, retreated to a known point and set off again — and the interval is how long that attempt takes. That the drive no longer names itself to Windows follows from the same fault rather than adding a second: a disk that cannot read cannot get far enough to introduce itself. Age is the other half. Fifteen years is a long time for lubricant, bearings and a head assembly that has spent most of it still, and it changes the number of attempts left rather than the diagnosis.
What the bench did with it.
The order of the job →| Equipment used | Its work on this job | The reason for it |
|---|---|---|
| DeepSpar Disk Imager 4 | Donor heads graded once fitted, and the running order set from what they gave | Heads mapped first, then one platter side to a pass, with every reset, every timeout and the power itself kept under our own control |
| PC-3000 Data Extractor | One surface at a time, at a pace set here rather than by the drive | Works with the drive's firmware and controller directly rather than around them |
| UFS Explorer Professional Recovery | The directory tree rebuilt off the copy, then the photographs opened by eye | Opens APFS, ReFS, XFS, ZFS and Btrfs when other software will not |
What the bench did with it.
One metered start, and count what it does
It saw a current-limited supply once, with the draw on a trace, and was then left alone. The pattern drew exactly as described: the motor reaching speed and holding it, and above that a small regular signature every four seconds as the actuator went out and came back with nothing to show. That was the last time it ran on its own heads.
Open it once, and open it prepared
In clean air the surfaces went first under magnification. The marking was light and confined to a narrow band, which is what a drive gets when its owners count the noise instead of arguing with it. A matched head assembly went in, alignment was set, and the heads were graded singly before any sector was requested.
Photographs first, everything else afterwards
They had already told us what mattered, so the reading order followed it: the areas holding photographs were crossed first, in their own passes, with the weaker head kept back until the stronger one had taken everything it could reach. The rest of the disk waited behind them and was read afterwards. On a drive of this age that ordering is the only real control anybody has over how much comes off, because nothing about a repaired mechanism of that age is owed to you.
What went home.
The photographs came home on new media, opened rather than counted, and a second set went with them. The FreeAgent has been retired. What made the difference was that nobody spent a fortnight plugging it in to see whether it had settled down.
Begin here if yours is doing the same thing.
More Apple machines, written up.
Yours doing something similar? Power it down first.
Prices are published and fixed. Memory cards and USB sticks are priced at £250 + VAT. A drive on its own comes to £300 + VAT. Anything holding a second disk, whether RAID, NAS or a server, opens at £500 + VAT. The first look costs nothing, and the figure that follows is fixed and in writing before a penny is charged. Switch it off and post it in. Most jobs carry no fee where no files return.