| Mac OS X operating system enables you to divide | | | | corrupt and inaccessible after this behavior. In |
| your hard drive into several partitions, called | | | | order to retrieve lost data from Mac hard drive |
| volumes. Every Mac volume is formatted using a | | | | volume, you need to find out the cause of this |
| file system, which can be HFS, HFS+, HFSX, or | | | | problem and perform data recovery Mac by |
| HFS Wrapper. The information related to Mac | | | | resolving it. |
| volume, such as volume size, file system type, | | | | Root of the problem: |
| starting sector address, and more, is stored in | | | | As stated in the above error message, this |
| volume header. In case the volume header gets | | | | behavior of Mac OS X hard drive occurs due to |
| damaged, entire volume becomes inaccessible and | | | | corruption to the volume header. After volume |
| you face severe data loss situations. At this point, | | | | header corruption, Mac OS X operating system |
| Mac file recovery becomes need of hour, if there | | | | can not recognize the volume and thus it can not |
| is no updated backup in place. | | | | be accessed. |
| Mac OS X operating system provides an inbuilt | | | | Volume Header is 1 KB file system meta data |
| utility, called Disk Utility, to fix most of the errors | | | | structure in Mac. This is parallel to Master |
| on Mac hard drive volume. It checks consistency | | | | Directory Block for HFS file system. It stores |
| and integrity of the file system and hard drive. | | | | significant information about volume, such as |
| However, in some situations, when you try to fix | | | | physical locations and data structures. |
| a damaged volume using the Disk Utility, the | | | | Solution |
| below error message occurs: | | | | To fix this behavior of your Mac machine, you |
| "Volume Header needs minor repair The volume | | | | need to format the hard drive, recreate the hard |
| Macintosh HD needs to be repaired. Error: The | | | | drive volumes, reinstall operating system, and |
| underlying task reported failure on exit 1HFS | | | | then restore data from backup. If backup is not |
| volume checked Volume needs repair" | | | | available then Mac data recovery is performed, |
| After the above error message, disk verification | | | | using third-party applications. |
| process gets interrupted. The volume remains | | | | |