Apple Mac Hard Drive Typical Failures.
Failed Apple Mac installed Hard Drives are generally the consequence of misuse or wear and tear that can be resolved using standard hard drive data recovery processes and procedures. Corrupt Apple Mac (HFS+) file systems are common and require specific assessment and remedial work to restore access to your data.
Mac Hard Drive Bad Sectors (Media Degradation).
Bad Sectors (of data) are generally associated with Apple Mac installed hard drives whose recording media has become damaged or whose recording properties are diminished. Data storage devices operating under the apple OS have relatively higher IO and read write activity that increases the propensity towards producing bad sectors.
Typical symptoms are a sluggish machine, lock-ups during operation and failure to boot into the operating system (OS). Specialist test equipment is needed to optimize the operational characteristics of the faulty hard drive and extract an image of its stored data.
If you are experiencing symptoms and access to your data is problematic then call our customer services help desk.
Mac Hard Drive File System Corruption.
Here at Datlabs we refer to File System Corruption as a “logical failure”. The hard drive components are not catastrophically failed however the file system that describes the structure and location of data within the storage media is corrupt and the operating system is unable to access data. Most computer users will at some time have experienced a Windows PC asking for a hard drive to be formatted, this is usually because the OS cannot find a valid file system to mount the drive or the drive is blank. Each hard drive has specific sectors that the system uses to identify the file system type, size, start location and so on. If however this information either becomes corrupt or inaccessible, your computer will not be able to mount the device and complete the boot process needed to provide access to the data. This process is similar with Apple devices, and if the important file system data becomes corrupted the system will unable to mount and access the data.
If you are confronted with the error message ‘A volume failed to mount ‘or you simply see a folder icon when you turn on the machine, you may well be experiencing a logical failure.
Mac Hard Disk Drive Clicking.
Mac Hard Disk Drives that are making a clicking noise have generally been subjected to a knock, drop or other shock, but can also happen due to normal wear and tear or just plain bad luck. Here at Datlabs we see many external and internal hard drives with physical/mechanical failures, the percentage only being beaten by the bad sector issues described earlier. Physical/Mechanical failures usually relate to a failure of the delicate internal read/write head assembly (HSA) which is responsible for writing, reading and amplifying your data to and from the magnetic platter surface.
Physical failures are more common in portable devices such as the MacBook and MacBook Pro, but can occur with any hard drive. Typical symptoms of such a failure are unusual noises such as clicking, knocking or beeping emitting from the hard drive. These noises occur when the hard drive is repeatedly attempting to read a vital area of the hard drive but a failure of one or more of the read/write heads prevents it from being able to do so.
Unfortunately recoveries from mechanical failures require the most complex and intricate processes and need to be conducted in a clean air and static safe environment by trained and more importantly experienced technicians. No software can fix issues of this kind and if you are confronted by such a failure we highly recommend you power off the device and give our specialist team a call.
Restoring Deleted Data on Apple MAC computers.
Usually arising from accidental or unintended user action, deleted data refers to when data has been deleted from the drive or the drive has been reformatted or repartitioned. Here a Datlabs we employ industry leading software and other skilled techniques to recover data from such an incident. However if the desired files have been subsequently overwritten with newer data this would unfortunately render them unrecoverable. To avoid such an outcome we highly recommend that as soon as such an incident occurs, the device is powered down. Operating System processes are constantly making changes and could potentially be overwriting the data required. If you have experienced such a problem then please give us a call, even if it is simply for our free advice which could just avoid you losing your valuable data.
Mac Hard Drive Firmware Failure.
Although these issues are becoming less common, they can still arise with all types of hard drives. Electronic failures relate to faults with the hard drive’s printed circuit board (PCB), normally located on the underside of the drive. This board is tasked with managing all the data flows in and out of the drive and with communicating with the host computer, but another of its vital functions is to control and distribute the electrical power the drive needs. Any shorts, power surges or sudden power interruptions can cause damage to vital components and prevent power being distributed, preventing normal operation and access to the stored data. Typical symptoms of such a failure are an apparently ‘dead’ hard drive that makes no noise, is not detected by the host computer and displays no signs of normal operation at all.
Hard drive firmware relates to the drive’s unique built-in operating software that the drive uses to control all its internal operations, data flows and interactions with the host computer. This is a very complex and specialist topic, but it is vital that this coding remains accessible, correct and undamaged. Loss of access to firmware or firmware corruption can cause various symptoms, including unusual drive model, serial number and capacity information being displayed, partial or total loss of access to data or the drive not being recognised at all. Unfortunately without specialist equipment, diagnosis of firmware problems is very difficult, and rectifying such problems is not possible. Fortunately here a Datlabs we have the necessary equipment, skills and resources.