RAID-5 array is defined as a redundant array for independent disk configuration which makes use of the disk striping with the parity. It consists of a minimum three disk drives and it uses the data striping and the parity data to provide the redundancy.
RAID 5 is a powerful tool to ensure integrity of the data. It provides both performance as well as security to the data.
In the context, "high availability" is the feature that is provided by the deployment of RAID 5 array on the several file services.
