Choosing different RAID levels for different Oracle files

In this recipe, we will see the characteristics of different RAID levels available in the market and learn what to choose for each different Oracle file type.

RAID is the acronym for Redundant Arrays of Inexpensive Disks, a common configuration in a storage subsystem. It is used to obtain low-cost, fault-tolerant configurations for high performance in the non-mainframe market, by using multiple "inexpensive" disks in different configurations.

Getting ready

Despite the "I" in RAID, we need a minimum of two or three drives, depending on the RAID level we want to implement.

Every RAID level has different requirements and offers different performance and data integrity levels. In this recipe, we will illustrate these requirements for each RAID level.

There is a common requirement, that is, the RAID controller; it can be software-based at the operating system, firmware level, or hardware-based. The latter offers guaranteed performance and no...