What is Data Recovery - 2

In the computer age, users, organizations, businesses to store data in computer systems. This storage of data;

- Magnetic: Hard Disk, floppy disk, tape backup cartridges
- Optical: CD and DVD, BluRay
- Electronic : Flash disk, memory card

Stored in the data base of physical or logical, be unattainable is "Data Loss". Causes and types of data loss;

1) Data storage media provide access to data logical regulations (file system) deleting or damage.
2) Deleting files or formatting.
3) Database files, documents have internal deterioration.
4) Data storage media is corrupted or damaged by the physical.


Data Recovery

Can not be reached, corrupt, deleted, lost data, data recovery is to restore private methods. Data recovery professional knowledge, experience requires. For physical damage, spare parts, special equipment is needed. Logical in structure damage, detailed sector-based and long work requires. Most important issues and should be considered, protection of the existing situation. Most small an error solution makes it difficult.

a) File System Recovery of Damage

Computer systems used in data storage media data and program files be saved on a regular basis and to follow. For this, file systems have been developed. FAT, NTFS, NWFAT, Ext2FS, CDFS. In the structure of data storage media system, there are system field ve data field.

System Field; description files, address files.
Data Fİeld ; files and defining sub-groups

System is very important. Advanced disk analysis and data recovery tools with
system is repaired.

b) Formatting and Delete Recovery

Files are deleted two basic information remains. First, name of the file, properties, and initial location. Second, knowledge of cluster chain created. Magnetic data storage media often random login is used. Automatic data recovery programs often under 30% and have success.