Friday, February 6, 2009

Block Group Descriptor Corruption in Linux

In Linux, Block Group is the component that makes the File System. The block group stores the redundant copy of the important file system control information like super block and descriptors. Block Group creates a Block Group Descriptor to manage and control the file creating and accessing activities.

Block Group descriptor is a data structure that describes it. Like the super blocks, Block Group descriptors are also duplicated in the file system. Block Group descriptor stores the following information:

  • Block Bitmap
  • Inode Bitmap
  • Super Block
  • Inode Table

Block Group creates the copy of the Block Group Descriptor, excepting its components, that is used by the file system and operating system to access the stored data from computer hard drive.

Due to the increased use of Block Group Descriptor, it is more prone to failures. Sometimes when you try to access a particular file or folder from your Linux hard drive, you may get some error messages like:

“Inode entry of the file is deleted”

“File not found”

“File is inaccessible”

These error messages occur when the Block Group Descriptor of your Linux computer has been corrupted or deleted. It can corrupt due to a number of reasons including virus attack, software conflicts or registry file deletion.

In these situations, you operating system can’t find the specified files and these files may become inaccessible. These situations can lead to the loss of your critical data stored on your hard drive.

In these circumstances, you need for data recover software to recover the lost data. Linux Data recovery software are the application software that can help you in recovering your lost data in all possible cases of data loss. These are easy to used data recovery tools that don’t require any prior technical knowledge in order to use them.

Stellar Phoenix Linux Data Recovery is easy to use data recovery software for recovering the lost data form Linux Volumes. This linux data recovery software can recover the data from Ext2, Ext3, and Reiser FS file systems of Linux operating system. This software uses powerful scanning algorithms to search the complete drive thoroughly to locate all the lost files and folders. After completing the scanning the software saves the recovered data on its original or user specified location.

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