MDB Corruption in Mac and Recovery

Mac partitions are what we refer as Mac volumes. For partitioning the Mac hard drive, you need to initialize it and carry out the further process, either through Disk Utility or Drive Setup. These utilities perform disk related tasks.

After the disk has been partitioned, all the related volume information is stored in MDB, which is an acronym of Master Directory Blocks. MDB is the data structure of HFS file system which holds specific and general information of Mac volumes, which make them recognizable under Mac operating system. Because of the work it does, Master Directory Block is also popular as Volume Information Block or VIB.

MDB possesses volume information such as volume signatures, creation and modification details of volumes, number of files in the root directory and volume itself, volume name and other attributes, number of allocation blocks in volume, first allocation block, start of next allocation search and more. All these information are required by the system software to recgnize existing volumes.

Moreover, this information is also required when the volume is mounted. File Manager reads this data from MDB and then copies it in VCB (Volume Control Block).

MDB Corruption

MDB may corrupt and any or all of the volumes may become inaccessible or appear as corrupted. Additionally, you may get errors like "Bad master directory block". The reason could be unexpected system shutdown or virus attack.

To cope up such situations and to avoid Mac data recovery, HFS possesses a backup copy of MDB at the opposite end of the volume. So, if you find MDB corrupted, use any disk utility and let it to recover. However, if the copy also fails as of the corruption, try using third party Mac recovery utilities.

About Mac Recovery

Mac data recovery software can scan and recover the lost information. These applications use algorithms and help retrievig the data. Data recovery Mac utilities are designed with the advantage to offer ease to users and safety to data and so are complete and worth.

Stellar Phoenix Macintosh Data Recovery software is the high-scanning Mac recovery product. The application supports HFS, HFS+, HFSX and HFS Wrapper file systems and offers data recovery Mac is each case. This Mac data recovery software has interactive interface and a queue of quality features to offer.