The Linkstation Drive Clicks on Power

The decode

His self-diagnosis is sound: clicking on power-up is the classic head-failure sound. To read anything, a drive's heads must find servo reference marks that tell them where they are; when they cannot — damaged heads, or lost reference — they retreat and retry, and that repeated retreat is the clicking. That the drive clicked and stopped working is consistent with exactly the head failure he suspects. The NAS context does not change the fault; the drive inside a NAS is an ordinary hard drive.

The clicking is the reason to stop powering the NAS, immediately. Every power-up flies possibly-damaged heads across the platters, and each pass risks scoring the surface where the data lives. Running the NAS again to check on it is the fastest way to convert a clean head-replacement job into a platter-damage one. The drive should be removed and left unpowered until it can be worked on under controlled conditions.

Head replacement is the established route, done in clean air. Recovery means opening the drive in filtered clean air, assessing whether the heads alone failed or have marked the platters, and fitting a matched donor head assembly from a compatible drive with alignment set correctly. It is precise work, but routine for a laboratory — the presentation is standard, and the offer of a target drive for the recovered data is genuinely helpful for the extraction step.

Reading the data means reading a Buffalo Linux filesystem, not a Windows one. Once the drive images, its volume is a Linux format that Buffalo NAS units use, invisible to a Windows desktop but read straight from the image with the right tools. The data is reached at the filesystem level from the image — not by plugging the recovered bare drive into a PC, which would show it as blank and prompt to initialise.

The platters set the honest ceiling, and single-disk means no second copy. If the heads failed over intact platters, a donor set restores reading and the data comes back in full. If prior clicking marked the platters, recovery narrows to the intact regions — established by inspection and stated before the work. A single-drive NAS has no redundancy, so this drive is the only copy, which is why recovery matters and why the recovered data should go to reliable, ideally duplicated, storage.

On the bench

The drive was removed from the NAS and assessed on PC-3000 UDMA, never run further through the NAS. The mechanism was opened in clean air under laminar flow and the heads and platters inspected under stereo microscope, a matched donor head assembly of the correct family fitted with alignment set on the bench. The drive was imaged on DeepSpar Disk Imager with head mapping, and the Buffalo Linux filesystem read from the image in UFS Explorer, the data extracted to the supplied drive and hash-verified.

The outcome

Head failure addressed with a matched donor set in clean air, the drive imaged, and the Buffalo filesystem read to return the data. The diagnostic costs nothing and completes within two working days of arrival, and the quote is one fixed written figure with VAT already in it; opening a drive is invasive work, so 50% of the quote is payable upfront to cover donor parts and lab time, with the rest owed only if the data comes back. The decode: you diagnosed it right — clicking on power-up is head failure, and a NAS drive is an ordinary drive underneath. Heads replaced over intact platters, the Buffalo volume reads and your data comes home to the drive you supplied.

Our case files are written up from genuine enquiries our lab has handled for customers across Swansea and South Wales, anonymised to protect client confidentiality. Each one describes the diagnostic and recovery approach our engineers apply to that fault, using the equipment listed.