Can’t take a chance, right? (yeah, well, you probably could if you back up data and create system images regularly, but it’s still a big hassle) A screeching or whining noise accompanies this.If devices like RAM, web camera, touchpad fail to function one can get it replaced at the nearest service center but what if your hard disk crashes! Of course you can purchase and install the new hard disk without any effort but what about the data which is gone forever. * This is sometimes called a "head crash", but that's strictly when the heads contact the recording media, which usually destroys both head and media. The short of it is that the drive is dead, it is never coming back, all your data is gone forever. If you have a PC-3000 (around $5,500, used by professional data recovery services) then your prospects are better, but by no means certain. 1/10 times it's a weird firmware bug fixed by flashing the firmware and erasing/rewriting the drive's vendor area. You can't tell what's happening just from what we know.Īround 9/10 times you can find out why the drive isn't booting right, but not fix it. If the calibration itself fails, it will try again. If the firmware crashes during this calibration, it will obviously try again. When a drive clicks, it is pushing the heads into their travel stop, to learn where they actually are in an attempt to calibrate the voice coil, which happens on every power on due to voice coil characteristics changing over time. In your case, the clicking may either be caused by the firmware failing to boot, or be the cause of the firmware failing to boot.
You can sometimes work out what's happening by establishing a terminal connection with the HDD, as they often expose an RS-232 interface (or a JTAG), but many are now "terminal locked". Of course it has failed to initialise the drive mechanism and has no working link to it. When your Seagate hard drive fails to boot itself, it reports a default value over the interface, which is 3.86 GB (actually the address space of the 32 bit ARM processors being used), and at that point usually just finishes booting up.
All computers have firmware and this is no exception.Īll computers can sometimes have trouble booting and this is also no exception. The HDD is an ARM-based computer running, usually with two or three Cortex M0 or M1 cores, out of the drive's buffer or cache memory.
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