Bench notes · Portable drives · MKD-2025-4319
It Slowed for Weeks, Then Would Not Open.
The parish clerk of a north Buckinghamshire village near Winslow watched the drive fade across six weeks: it takes a minute to show up, then five
, then folders open and just sit there spinning
, and finally the light comes on but nothing appears
. On it sat scanned minute books going back to the 1890s, the war memorial research, and photographs gathered at open days. Someone had advised him to defragment it. He had not got round to it.
Same fault? Start here.
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Without the jargon.
Drives do not stiffen with age the way a hinge does. They slow down because they are reading things twice, then ten times, then fifty. Every one of those attempts is a wait you can feel at the keyboard. Thumbnails go early for the same reason — drawing one means fetching the real contents of a file, retries and all. And the morning it refuses to appear at all is that same sum done at mount time: the checks a drive has to pass before it can introduce itself now outlast the computer's patience.
The kit this job needed.
See how a job runs here →| Kit | Why it was used | What it gives us |
|---|---|---|
| DeepSpar Disk Imager 4 | Finished the deep passes at SATA level, with timeouts set around the failing head | Maps the heads, then images each — resets, timeouts and power cycles controlled |
| DeepSpar USB Imager | Made the first sweep through the enclosure's own port, with no operating system in the way | The same steady imaging, only run across the USB bridge |
| UFS Explorer Professional Recovery | Rebuilt the folder structure from the images and laid it out on the replacement disk | Ahead of the pack on difficult filesystems: APFS, ReFS, XFS, ZFS, Btrfs |
What happened on the bench.
Stop browsing it and start measuring it
Nobody opened a folder when it arrived. A failing drive has a finite number of reads left in it, and spending them on a look round spends them on nothing. Measurement came first: reallocated sectors already high and still climbing, and a head survey showing one of the four answering late and getting later. Its share of the platter held precisely the files that had stopped previewing for him.
Secure the simple ground before it turns hard
The capture ran in order of confidence. Three sound heads at full speed cleared the healthy zones inside a working day, so most of the archive was already safe before the drive faced a single hard question. Only then were the settings changed — longer waits, controlled resets — and the work moved onto ground that had been failing him for weeks.
Work the weak head slowly, rebuild on a disk you can trust
The failing head's territory was crossed at walking pace, with rest and a power cycle between stalls. Everything recovered went onto a new drive in the folder order the archive had always used, so the group could plug it in and carry on filing where they left off.
The outcome.
Nearly all of it survived: the minute books, the memorial research, most of the open-day photographs. A cluster from the earliest scanning sessions sat under the failing head and came back either broken or not at all. The report named each one. The minute books can be rescanned from the parish safe. The borrowed photographs went home to their owners years ago.
Other jobs from the casebook.
Also filed under Portable drives.
Does that sound like your device?
One lesson runs through the lot: cut the power, let us look for free, then decide with the facts in hand.