When you discover that you suffered a data loss, the first decision is always if data recovery is possible. Further action must be taken depends on the response to this, it is worth if trying to retrieve data or to find a way to handle data loss.
This can be a very difficult choice, especially if you don't know what caused the loss of technician données.Un already attempted data retrieval and the effects of some use, for example, "Microsoft disk check" is fairly random.
Often, the decision becomes a commercial if the information is actually worth the cost of valorisation.Sauf in very extreme cases, magnetization which stores the data will be always present on the disk. Even in cases where the computer was burned, crushed or flooded data recovery can nevertheless be possible, but at a very high price.
The recovered data type also influence this decision.If you can get, for example, 90% of all loss of data, and these files are images you will retrieve 9 out of 10 images.Cela can be considered as a revenge succès.En, if files are tables of the database and only 90% can be recovered the entire database is endommagé.Plus dependence and interaction between the data files, the worst effects of even a small amount of missing data will be.
There are two separate procedures in data recovery.
Physical data recovery is the extraction of the raw data from a damaged disk, logical data recovery means the reconstruction of damaged data files.
Pure logical data loss are usually caused by an error of the operator.The accidental deletion of files, accidental disk format, or it may be a malicious virus attack.
Physical data of a disk that is not mechanically recovery may not need a reconstruction later logic if it can successfully repair, even if in practice several physical repair are followed by the logic of reconstruction if some data are permanently lost due to disk damaged surfaces.
It is easy to underestimate the element data recovery time, but the loss of data during a week is actually losing jamais.Un data file was accidentally deleted instead of moved to the Recycle Bin or by emptying the Recycle Bin, is permanently marked in E5 directory entry.
This frees the associated FAT entry and the location of the deleted file is no longer protected by the file system, these locations are available for recycling to the next time that the operating system should create a new file.
The problem is that in any computer, the files are continuously créés.Plusieurs computer processes write to log files, and even a site unique Web navigation is download several fichiers.Ces could overwrite the files removed, which makes it much more difficult recovery.
Andrew Whitehead is a contributor to the free - backup .info - the House of the Amazon S3 popular base for files on-line - Back2zip before article backup tool located at http://free-backup.info/is-data-recovery-worth-pursuing.html
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