Group Descriptors corruption in Linux - cause and solution

In Linux the Ext2 and ext3 file systems space is categorized into blocks, which are further organized block groups. There is particular data structure for each group which defines it and contains valuable information, called group block descriptor. The data structure is assigned to each block groups so as to access it and it also includes inode bitmap, inode table and blocks bitmap location information. The task of Group descriptors is to take consecutive places and collectively form group descriptor table.

If there is a corruption in group descriptors, the whole file system is taken as damaged. Corruption usually results as a result of unexpected system shutdown or virus attack. In case they are corrupt, system may not boot at all or show errors like:

“EXT3-fs error: ext3_check_descriptors / group descriptors corrupted”

To each block group, table of group descriptors is placed just after the copy of superblock. To avoid Linux Data Recovery needs while file system corruption, group descriptors for each block group are duplicated. While normal run, system uses only first copy of group descriptors.

The user can use fsck and go for a repair of file system corruption in such cases. But this command cannot remove errors in case of extensive damage. Then, the last solution remaining with the user is to recreate whole file system by formatting the drive. But prior doing this, the user needs to backup all the required data.

The backup must be complete and in a proper manner. After the completion of backup, the user should check for its status. Also, it is recommended to check if backup contains all required files. However if backup is found to be incomplete or unproductive, we can use Linux Recovery applications to extract lost data.

Linux Data Recovery software scans and recovers lost data from the affected media. These applications carry out Data Recovery using powerful scanning algorithms.

Although are so many applications are available for Linux data recovery but the software provided by the Stellar i.e.; Stellar Phoenix Linux Data Recovery is one of the most powerful and easy to use Linux Recovery software. It can be used for ext2, ext3 and ReiserFS file system based disks. This Data Recovery Linux software has graphically rich interface. It offers efficient scanning and safe data restoration options. The application can be used for most of Linux distributions for Linux Data Recovery.

Hard Disk Failure -Linux Data Recovery

Linux, UNIX windows or any other operating system has similar hard ware configuration excepting Mac, and all have similar hardware problems When physical hard drive crash of has similar reason as windows the reason behind that is responsibility on other computers.

Most Terrible situation comes when it shows complete hard drive failure; there can be so many reasons for hard drive failure some of them are due to old age of hard drive, or it is kicked or dropped. Trashing the head generally means the read write head crashes onto the disk platters, and keeping everything/anything on that platter from being readable.

If a hard drive contains platter that means it has every thing.

This hard drive failure can occur due to electric failure. In this case, the data stored on the computer hard drive can’t be read and it can lead to the terrifying data loss.

After this bad incidence, you need to recover your most valuable data to save your business if the lost data was very important for your business. You can recover your data from completely failed hard drive with the help of data recovery service.

For Linux Data Recovery Services you always considered a expert and experienced data recovery professional or linux data recovery services providers companies whose specialized data recovery linux associate repair the damaged parts of the drive in 100 clean room facility labs also called data recovery clean rooms.

After repairing or replacing the damaged hard drive parts, the associates use the linux data recovery software to recover the data from the drives. Linux data recovery software can recover the data in almost in any condition of data loss.

Stellar Information Systems Ltd, a leading data recovery software and service provider company, provides data recovery software and service for all popular operating systems such as Linux, Windows, Mac, UNIX, and Novell and all kind of hard drives including SATA, PATA and SCSI.

For Linux Operating system, Stellar Provides powerful and robust data recovery software called as Stellar Phoenix Linux Data Recovery software. This software can recover the lost data in all possible cases and conditions of data loss after repairing the damaged hard drive. This non destructive utility is read only.

Linux recovery software that recovers the data in its original form without making any change in the original contents. This software helps in Ext2 recovery of data, Ext3 recovery , and ReiserFS file system based Linux volumes recovery.