Memory for disk arrays
Levels 3, 4 and 6 have a high reading speeds, but speed records Sea relatively
low, and the construction of complex systems. ii. RAID 10. Tolerant array of
overlapping and parallel processing-ing. This architecture is an array type RAID
0, segments of which are RAID 1 arrays. It combines the high performance and
fault tolerance. Advantages: high fault tolerance; high performance.
Disadvantages: very high cost; limited scaling. iii. RAID 30. Tolerant array
with parallel data transfer and increased productivity chickenpox. It is a type
of RAID 0 array, which are segments of RAID arrays 3. It combines the high
performance and fault tolerance. Normally used for applications requiring serial
transmission of large amounts of data. Advantages: high fault tolerance; high
performance. Disadvantages: high cost; limited scaling. iv. RAID 50. Tolerant
array with a distributed parity and increased productivity. Is a type of RAID 0
array, which are segments of RAID 5 arrays. On Doppelmayr announce a fault
tolerance and performance for applications with large investments exceeding
demands and high speed data transmission. Advantages: high fault tolerance; high
speed data transmission; high speed processing of requests. Disadvantages: high
cost; limited scaling.
b. RAID Controllers. For practical implementation of RAID-arrays requires two
components: the actual array of hard disks and RAID controller, which determines
the possible connection to the same hard-drives in a RAID-array of any type.
Controller performs functions to the server (workstation), generating redundant
information in the registration and verification in reading, distribution of
information on the disk in accordance with the functioning of the algorithm and
others.
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