Friday, November 23, 2007

Backup is the most Essential Part of Data Recovery:

Booting issues, virus attacks, or corrupted file systems are very much present in any exchange or mail servers and can cause many of your archived email messages to apparently disappear. Companies which rely heavily on email communication and do not have back ups might find this a pervading problem. But data recovery designed specifically for email recovery can fix this problem.
Data recovery is the process of restoring a file system. The file system and file structure are maintained by the operating system. The operating system maintains a record of every file stored on a disk as well as where that file is located in the disk memory space. You can think of the operating systems record of every file as a list of pointers to the space in memory where each file begins. When a file is deleted, the operating system goes into its list of pointers and removes the pointer to that file. The file itself has not moved and it still inhabits the same place in memory completely unchanged. The only thing that has changed is that the operating system has removed the record of that file from the list of pointers and made that memory space available, or free if you will, to other files to be saved in the future.
So, when you hit the undelete button, what you’re doing is telling the operating system to put the pointer to your lost file back into its record of pointers and back into your file structure. Unfortunately, if another file had been saved before you tried to undelete, it may have overwritten part of your lost file. This along with the complexities of some data and file systems as well as the value of the data itself may require the skills of a professional data recovery company.

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