What are the different RAID levels?
The following list explains the standard RAID levels (0, 1, 2, 3, 4, 5, 6) and popular non-standard and hybrid options (RAID 10). RAID 0, also known as a striped set or a striped volume, requires a minimum of two disks. The disks are merged into a single large volume where data is stored evenly across the number of disks in the array.
How is it that RAID arrays still manage to provide more protection?
How is it that RAID arrays still manage to provide more data protection compared to a single disk? Explanation: None. Sanfoundry Global Education & Learning Series – Storage Area Networks.
What is the difference between RAID 1 and RAID 0?
Unlike with RAID 0, where the focus is solely on speed and performance, the primary goal of RAID 1 is to provide redundancy. It eliminates the possibility of data loss and downtime by replacing a failed drive with its replica. In such a setup, the array volume is as big as the smallest disk and operates as long as one drive is operational.