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PostgreSQL High Performance Cookbook by Dinesh Kumar, Chitij Chauhan

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Discussing RAID levels

In this recipe, we will be discussing about various RAID levels and their unique usage.

Getting ready

In this recipe, we will be discussing several RAID levels, which we configure for database requirements. RAID (Redundant Array of Interdependent Disks) has a dedicated hardware controller to deal with multiple disks, including a separate processor along with a battery backup cache, where data can be flushed to disk properly when a power failure occurs.

How to do it...

RAID levels can be differentiated as per their configurations. RAID supports configuration techniques such as striping, mirroring, and parity to improve the disk storage performance, or high availability. The most popular RAID levels are zero to six, and each level ...

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