Hard drives undoubtedly form an important part of your Mac computer system. It is not only a repository that facilitates non-volatile storage of data, rather much more than this. It is a place where your operating system, program files, and data reside. Mac hard drives require proper maintenance and verification tasks time after time to enable you easily get rid of all the impending drive failures. Data loss fears can still lurk around owing to a number of variables. Some of the potential reasons for data loss on Mac hard drives include frequent power surges or related problems, improper shutdowns or hard restarts, bad sectors on the drive, OS X bugs, etc. Due to these reasons, your hard drive becomes unreadable and leaves you in a tormenting situation of data loss. In these circumstances, you need to identify the underlying issue and opt for a competent Mac data recovery solution.
In some real-time scenarios of Mac disk corruption, you may encounter the following errors on your screen:
Cannot access <drive name> because a disk error occurred.
Not an HFS volume
The disk <drive> cannot be accessed because a disk error occurred
Internal file system error
The above errors may show up due to a corrupt hard drive directory, which can indeed result in further problems like missing files or data corruption. In such cases, you may also see an incorrect value for free or occupied space on the disk drive. Mac OS X introduced the concept of file system journaling, which has proven to be a good solution for directory corruption and other similar problems.
In yet other cases, you may come across various kernel panic alerts. These occur due to defective RAM, incompatible kernel extensions, corrupt drivers, incorrect permissions on system files, etc. In case of incompatible kernel extensions, you need to check the panic log. You can fix them by installing and reinstalling corrupt third-party software applications. Additionally, you can use Disk Utility to resolve incorrect permissions on the startup disk and perform disk repair.
Similarly, to minimize the risks of data loss on your hard drive, you should implement a good backup plan. In case you still face data loss, you can use commercial third-party Mac recovery tools. This software follows a lucid and comprehensible approach to data recovery. They use safe, proprietary mechanisms to scan your Mac hard drive and recover every piece of lost, deleted, or inaccessible information in your system.
About: Data recovery on Mac OS X is still a topic of exploration where one needs to identify the importance of recovering data back from scenario likes hard disk corruption, accidental deletion of data, inaccessibility of the system and many.