Mac File Recovery When Disk is Unreadable

The file system of your hard drive keeps all the information about the data on the drive and helps in accessing them with their name. Unexpected system shutdown has sometimes severe impact on the file system of your Mac hard drive. After an instance of power failure and improper system shut-down, chances are there that the file system of your computer may get corrupt and the data in the corresponding volumes/partitions become inaccessible.

In order to resolve the problem and recover the seemingly lost or inaccessible data back, you need to take the help of any Mac data recovery software.

After the power went away your Mac system got shut down suddenly. When the power came, you restarted your system and find an error message on the screen. The error message that you came around can be read as below:

“The disk is unreadable: Do you want to initialize it now?”

After encountering the error message, the system fails to boot any further and the data in the hard drive becomes inaccessible. Here, if you try to analyze the problem using the Disk Utility, it will show another error message, which can be as below:

“Verify and Repair volume “disk1d4”

Checking Journaled HFS Plus volume.
Invalid node structure
….
….
Error: File system verify or repair failed.”

Note: Disk Utility is an inbuilt utility in Mac, which helps in locating errors in the Mac disk and repairs them as well.

Cause:

Here, due to the sudden system shutdown, the file system has been damaged and thus the operating system failed to learn the data areas, while booting and the data became inaccessible. There are many different reasons behind file system corruption, such as virus/malware infection, operating system malfunction, hardware/software contradiction etc.

Resolution:

'FSCK' is another utility to check and repair file system related errors. You can run the 'FSCK' utility in order to resolve the above issue.

Sometimes, if the file system has been damaged severely, the 'FSCK' utility also fails to respond and the problem remains. In such a situation, you do not have any other way, except formatting the drive and restore data from any previously created backup. But, if there is no valid backup with you, you need to use any Mac recovery software to recover the formatted data back.

Data recovery Mac utilities scan the troubled media and with the help of highly advanced algorithms, recover the lost or formatted data back. Moreover, the utilities are completely safe and retrieve the lost data, without any change or modification in their original structure.