Go to System > RAID to configure a redundant array of independent disks (RAID) for the FortiMail hard disks that are used to store logs and email.

Most FortiMail models can be configured to use RAID with their hard disks. The default RAID level should give good results, but you can modify the configuration to suit your individual requirements for enhanced performance and reliability. For more information, see “Configuring RAID for FortiMail models with software RAID controllers” or “Configuring RAID on FortiMail models with hardware RAID controllers”.

For some FortiMail models, you can configure the RAID levels for the local disk partitions used for storing email files or log files, depending on your requirements for performance, resiliency, and cost.

RAID events can be logged and reported with alert email. These events include disk full and disk failure notices. For more information, see “About FortiMail logging”, and “Configuring alert email”.