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Additionally, manufacturers like Promise also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways. Various RAID levels store information in different ways. However, this peculiarity makes file recovery more complicated. Such approach helps to speed up read and write operations, and it is evident that saving two parts of a file having the size of 1 GB to two hard disks simultaneously is much faster than saving the same 1 GB of data to one hard disk. The size of such parts may range from 2 KB to 2 MB, so each file is stored on several hard disks at the same time. Then these parts are written consecutively to all hard disks within such array. However, when data is written to a RAID system, a file is divided into several parts. Download Why can’t ordinary software tools restore files from RAID?Ĭonventional hard disks keep user’s data by writing it to their surface in a consecutive way, and this is how an entire file is stored on a single hard disk.
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