Recovering hard disk composite after failure

Recovering hard disk composite after failure. Regular backup of all critical data is essential for both enterprise and home users to prevent total data loss. Malware, user errors, hardware defects and lightning – the list of possible dangers is long. The widespread opinion is that one is on the safe side with a combination of several hard drives. Just screw an extra hard drive into the computer and you’re done with the RAID array, where all data is stored in duplicate, protecting it from loss. Even many a computer magazine recommends this method of data backup. But far from it! A RAID is unsuitable as a backup system. Why this is so, we explain in this post.

Data loss in the server, NAS or storage system often affects important files and folders. Therefore, RAID data recovery should be as professional as possible. In order to assess the extent of the damage, we provide a free advance consultation (usually by phone). Thereafter, the RAID disks are collected for examination in our in-house data recovery lab. After the analysis, the previously determined data is summarized and the required procedure for recovering the RAID is defined.

The associated costs are transmitted in writing and binding as a fixed price. The restoration of the data is done according to the damage. In most cases, recovery and repair of failed hard drives is required to reconstruct the contained RAID fragments in the next step to a complete array. Most importantly, as we strive for the best data consistency possible (readability and quality of data), most of our steps are done manually by our Reverse Engineers specializing in RAID data recovery.

What is a RAID?

RAID is the abbreviation for “redundant array of independent disks”. Independent hard disks are arranged redundantly. Multiple physical storage media (typically hard disks or SSDs) are merged into one logical drive. This allows data to be stored redundantly, ie. H. they are written to multiple volumes simultaneously. Failure of one or more storage media will thus ensure that the RAID continues to function as a whole.

Broken discs can be exchanged during operation. Meanwhile, you can continue working in the network. This is especially important for companies that want to avoid downtime. RAIDs are therefore a great way to protect against a hard drive failure or malfunction. Although they increase the failure protection. However, the described redundancy corresponds to no data backup.

There are different RAID configurations. The most widely used are the RAID levels 0, 1 and 5. The RAID 0 is a combination of two equal-sized hard drives. The data to be stored are written alternately on one of the two discs. This procedure accelerates the writing and reading processes, thus enabling faster work. In terms of data security, however, a RAID 0 brings no advantages. If a disk fails, all data stored in the disk drive is lost.