Original Source: https://ttrdatarecovery.com/how-to-setup-raid-1-diy/ Raid 1 (Redundant Array of Independent Disks) refers to mirroring . In simpler terms it writes identical data across all the stacks of disks in the raid 1 providing the vital benefits of data redundancy, resilience, and fault tolerance. RAID 5 too offers the fault tolerance features, but instead of mirroring it uses the striping method to distribute the data across multiple storage devices. Unlike raid 0 stripes and parity are absent with this type of raid, it is a seamless and optimized version from the other RAID levels. Back up Your important files and media before you begin so that nothing is lost. Without a backup , even the most prudent methods are susceptible to vanishing in thin air. In case you want some existing files from the previous drives on the array to be installed, create a back up in an external location, and then restore it after the array ...
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