![]() ![]() The RAID rebuild process will take place on the PC you’ll use to perform RAID data recovery. But, if the RAID array is damaged, not detected by the PC, or there’s no compatible connection interface on the enclosure, you will have to manually rebuild the RAID array. Some RAID enclosures come with an eSATA or USB interface that lets them connect directly to a PC. One telltale sign of this is data loss, even though all individual drives are in full working order. A common reason behind RAID data loss is a corrupt or failing RAID controller. RAID storage systems either use a software or a hardware controller to ensure the RAID arrays work together. RAID 6 requires at least four storage drives in order to work. This means that a RAID 6 array can survive two hard disk failures without losing data. However, it uses two parity blocks to keep a check on the data. You need at least three hard drives to set up a RAID 5 array.Ī RAID 6 array works on the same principle as RAID 5. This allows the data to be striped across the hard drives, while providing data redundancy in case one of them fails. ![]() ![]() In addition to that, it stores a parity checksum, a sort of integrity check for the data, on a separate drive. A major drawback is that users only get half the effective storage space at double the cost.Ī level 5 RAID array stripes your data across the drives. Essentially, your data is copied exactly as it is to all the drives in the RAID array, making RAID 1 excellent for data redundancy. While this is good for performance, RAID 0 doesn’t offer any data redundancy because even if one of the drives fail, all your data is rendered corrupt and inaccessible.Ī RAID 1 array mirrors the data on your drives. data is split across the drives, resulting in exponentially fast read and write speeds. RAID 0 works on the principle of “striping” data across multiple disks, i.e. ![]()
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