About RAID levels
Supported RAID levels vary by FortiMail model.
FortiMail 400B, 400C, and 5002B models use software RAID controllers which support RAID levels 0 or 1. You can configure the log disk with a RAID level that is different from the email disk.
FortiMail 1000D, 2000B, 3000C, 3000D and 4000A models use hardware RAID controllers that require that the log disk and mail disk use the same RAID level.
FortiMail 100C, 200D, and 5001A models do not support RAID.
The available RAID levels depend on the number of hard drives installed in the FortiMail unit and different FortiMail models come with different number of factory-installed hard drives. You can added more hard drives if required. For details, see
“Replacing a RAID disk”.
The following tables describe RAID levels supported by each FortiMail model.
Table 24: FortiMail supported RAID levels
Number of Installed Hard Drives | Available RAID Levels | Default RAID Level |
1 | 0 | 0 |
2 | 0, 1 | 1 |
3 | 0, 1 + hot spare, 5 | 5 |
4 | 5 + hot spare, 10 | 10 |
5 | 5 + hot spare, 10 + hot spares | 10 + hot spares |
6 | 10, 50 | 10 |
7 or more | 10, 10 + hot spares, 50, 50 + hot spares | 50 + hot spares |