Introduction to RAID : Configuration Planning

Configuration Planning

Factors to consider when planning a configuration are the number of drives the Nytro MegaRAID controller can support, the purpose of the drive group, and the availability of spare drives.

Each type of data stored in the disk subsystem has a different frequency of read and write activity. If you know the data access requirements, you can more successfully determine a strategy for optimizing the disk subsystem capacity, availability, and performance.

Servers that support video-on-demand typically read the data often, but write data infrequently. Both the read and write operations tend to be long. Data stored on a general-purpose file server involves relatively short read and write operations with relatively small files.