HFS (Hierarchical File System) is the most important part of Mac OS X computer. It offers great stability, availability and data access speed. This file system is produced by different elements and these elements carry out their entrusted. These components are to improve the speed of your system useful. But in some situations, damage to these components can damage the entire system folder and in situations of serious data loss. To clarify, you’re forced to use Mac solution for data recovery for your critical information again.
The HFS file system divides a disk into logical blocks of 512 bytes. These blocks are then grouped into allocation blocks, that one or more logical data block can be saved depends on the total size of the volume. The HFS file system uses a 16 bit value for the allocation of address blocks, limiting the number of allocation blocks to 65,536.
The HFS file system consists of data structures of five:
The logic blocks 0 and 1 volume of Mac are boot blocks in which the system startup information.
Logical Block 2 Shop MDB (Master Directory Block). It defines the different types of data on the volume.
The logical block 3 is the volume bitmap starting block. She remembers the block at the center is free and used.
The file overflow measure for the B-tree stores the additional degrees, the layout of disk allocation block on the file once used the first three blocks in the catalog file is in order.
Catalog file is another B-tree, which records all files and directories contain saved volume. Catalog file stores four types of files. Each file had a record of the file and its registration file in each directory entry directory and Directory Thread Record.
Of all the components of the file, the file catalog for the most important. It stores the files and make entries in the directory data structure unique performance problems multitasking ability. It is also risky, such as damage to catalog all file system files can cause damage and problems of data loss. At that time, Mac Recovery is the only thing that can help you recover your data.
It is best done with the help of Mac Data Recovery Software. These are third-party applications, scanning algorithms use the scanner’s hard disk, locate the lost data and recover it. This software is fairly easy and safe to use.
Stellar Phoenix Macintosh Data Recovery is the most comprehensive tool to recover lost data in most cases. It stores all data from HFS, HFS +, HFSX, FAT and HFS Wrapper volumes file system. The software data recovery Mac for Mac OS X 10.5, 10.4 and 10.3.9 conceived.