Making Backups of MBR DBR FAT Directory entries User Data Prevention of disaster even after some serious disk crashes recovery done by the previously stored

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Chapter – 11

Making Backups

Why Backups?

“The prevention is always better than the cure”. Making backups is also an important part of prevention of data disaster, which may help us to overcome the disk crash or any other type of data loss. In this chapter, we shall discuss how we can recover the data even after some serious disk crashes, just only with the help of previously made backups.

The recovery done by the previously stored backups is, almost always up to 100 percent, however the several type of disk crash may cause the variation in the recovery results in some particular cases.

Recovering data with the help of backups is quite easy, fast and reliable and can give the best results whereas the data recovery without backups is a difficult, complicated may be a lot of time taking process and even then we are in fear of not getting the 100 percent data in several cases.

When and what to Back up

There are several different areas on the disk which should be backed up once or at different intervals of time. The following table gives the idea of complete back up measures and helps to find out that when and what to back up:

What to Backup

When to be Backed up

Backup of MBR

Once after FDISK. The MBR is Created By the FDISK command of DOS. You can take backup of MBR After FDISK, however even after the FORMAT of partitions created by FDISK, The MBR remains Unchanged.

Backup of DBR

Back up the DBRs for each logical drive once, after FORMAT.

Backup of FAT and Directory entries.

FAT and Directory Entries are changed every time when you create of delete files or directories. Therefore it is recommended that you should take backup daily.

Backup of User Data

Should be taken regularly. This type of backup causes the disk imaging to take place. However it is time taking yet most of the companies which have very sensitive data in their disks like to spend their time on disk imaging because by doing this they can backup all of the information described above.


Besides this you should make an Emergency Boot Floppy for the system. If there is any type of disaster with the data in you hard disk, you can boot your system with the help of this floppy and analyze the disk for errors.

Sample Chapters from book DATA RECOVERY WITH AND WITHOUT PROGRAMMING by Author Tarun Tyagi
Data Recovery with & without Programming


Publishers of the Book
Number of Pages
ISBN
Price of the Book


BPB Publications, New Delhi, India
540
81-7656-922-4
$69.00 (Including Shipping Charges, Cost of Book and Other expenses, Free Source Code CD included with the Book)





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