Foxconn H77MXV User manual - Page 73
Solution, Hard Disks No., Capacity, Performance, Reliability, Application, RAID0, RAID1, RAID10,
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RAID CONFIGURATION RAID 0 (Stripe) RAID 0 reads and writes sectors of data interleaved among multiple drives. If any disk member fails, it affects the entire array. The disk array data capacity is equal to the number of drive members times the capacity of the smallest member. The striping block size can be set from 4KB to 128KB. RAID 0 does not support fault tolerance. RAID 1 (Mirror) RAID 1 writes duplicate data onto a pair of drives and reads both sets of data in parallel. If one of the mirrored drives suffers a mechanical failure or does not respond, the remaining drive will continue to function. Due to redundancy, the drive capacity of the array is the capacity of the smallest drive. Under a RAID 1 setup, an extra drive called the "spare drive" can be attached. Such a drive will be activated to replace a failed drive that is part of a mirrored array. Due to the fault tolerance, if any RAID 1 drive fails, data access will not be affected as long as there are other working drives in the array. RAID 5 (Parity) RAID 5 provides data striping at the byte level and also stripes error correction information. This results in excellent performance and good fault tolerance. Level 5 is one of the most popular implementations of RAID. RAID 10 (0+1) RAID 10 is a combination of striping and mirroring. This configuration provides optimal speed and reliability, but you need four SATA hard disks. Recovery This level copies data between a master and a recovery disk, so the capacity of the array is equal to the capacity of the smaller drive. It's no need to set the strip size for Recovery, but you must select a sync mode to update the volume. Comparison Table : Solution Hard Disks No. Capacity Performance Reliability Application RAID0 >=2 All Highest Dangerous Look for speed RAID1 2 RAID5 >=3 RAID10 >=4 (Even number) Recovery 2 50% N-1 Smallest *2 Smaller Read faster Read faster Write slower High Read faster Excellent 100% Data backup Good Limited budget Excellent Unlimited budget Excellent 100% Data backup 66