Thursday, April 23, 2009

Data Inaccessible and Block Corruption in Linux

The Linux operating system consists of Ext2, Ext3 and Reiser FS file systems. These file systems stores the data in the form of Data Blocks. Blocks are used to decrease the chances of internal fragmentation and decrease disk seeks time when reading or writing a large amount of data on the disk.

Every data block group consists of a super block, an Inode bitmap, subsequently the actual data blocks. The super block of your Linux operating system stores significant booting information.
The group descriptor holds the value of block bitmap, Inode bitmap and the starting of the Inode table for each block group. This data structure of the Linux operating system not only reduces the disk fragmentation but also make the data storage very simple.

When you find that your Linux system responds very sluggish. It may be possible that the system crashes, hangs, and freezes. Such situations occur if there is a lost of fragmentation on the hard disk. The disk fragmentation can occur in case if you are using blocks also.

The data stored on the drives becomes entirely inaccessible. You need to format the hard drive to solve out this problem. Formatting of the hard drive completely removes the existing file system and installs a fresh file system that is free from errors. But, along with the file system, disk formatting also removes the data stored on your hard drive.

It results in very serious condition of data loss. You need to recover them at any cost to save you and your business. Data recovery in such situations is possible using data recovery software. For this particular problem, you need to use Linux data recovery software. These are the data recovery tools designed to recover the lost data from Linux based computers. These software are very easy to use and doesn’t require any sound technical knowledge.

You can get the free demo version of this Linux recovery software from company’s website to check the user interface and powerfulness of the software. The demo version is able to show the complete preview of all the images, documents, spreadsheets and hexadecimal view of the remaining files.

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