Design Your Data Warehouse Storage for Performance

摘要

RAID 1 (which includes RAID 0+1 and 1+0, all ways of mirroring the data), RAID 5 (independently storing data and parity - error correction data - separately), and Advanced Data Guarding (ADG), which is like RAID 5 on steroids, are used in the data warehouse arena. Because the data warehouse holds such critical information, you really should employ some type of fault-tolerant system.