When implementing centralized storage solutions, you are often placing a large number of very important eggs into a single basket . SAN and NAS manufacturers understand this and have spent a lot of research and development dollars on building in Fault Tolerance into their offerings. There are many options available to the end user ; some of the fault tolerance options are as follows :
RAID 5 Is Not Recommended RAID 5 is not recommended for any application that performs write transactions more than about 15% of the time. This is due to the fact that each write transaction requires reading multiple disks and recalculating and writing of parity bits. |