RAID 5 data recovery software – review
The RAID-5 is widely considered as one of the most secure and reliable disk, based on the fragmentation of data at the block level and distribution of the parity data on all drives which make up the system.
When a block of data (chunk) is written to the disk system, a parity block is created in the stripe (a block is often composed of many sectors of the disk. A series of consecutive blocks is called the stripe).
If another block, or some portion of the same block, is written in the same stripe, the parity block is reworked and rewritten. The disc used to store parity ranged from one stripe and the consequent, and this makes it possible to distribute the parity blocks.
The parity block is not read when you access the data as necessary and not because it slows down performance, however, if it is read in a block which returns a CRC error. The parity block along with the sector in the same relative position in the blocks of data remaining stripe, serve to restore the block having an error.
This is not even reported to the user so even if one disk fails, the parity blocks are combined discs working immediately with the remaining data blocks to reprocess the data from the failed disk.
The failure of a unit, achieved only a moderate slowdown in performance. The controller does not report to the computer unit is no longer working. The bankruptcy of a second unit, having a single RAID-5 parity block stripe, leads to the loss of all data.
Another common reason for lost data from RAID-5 logical drive is the mismatch due to faulty maintenance by the user.
Getway Raid Recovery 2.1 can recover data from RAID-5 systems that have logical damage in systems if hard drives that have mechanical damaged, the recovery rate varies depending on the type of damage that have the drive and still remains an average of 80%.
Here is the discription form the vendor: Getway Raid Recovery is the professional raid data recovery software which can extract data from multiple Hard disks in a RAID system, and rebuild the correct data. It can get data back from various types of arrays, including RAID 0, RAID5, RAID 5E, RAID 5EE and RAID 6.
The RAID 5 data recovery software can help you recover data due to the following possible data loss situations: File Deletion; Accidental Array Format; MBR damage/ loss/ excursion; DBR damage; One or two RAID hard disk damage, etc. Getway Raid Recovery Software support “Smart Mode”, “Manual Mode” and User-defined” working modes.