| MFI(4) | Device Drivers Manual | MFI(4) | 
mfi —
mfi* at pci? dev ? function ?
mfi driver provides support for the MegaRAID SAS
  family of RAID controllers, including:
These controllers support RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50 and RAID 60 using either SAS or SATA II drives.
Although the controllers are actual RAID controllers, the driver makes them look just like SCSI controllers. All RAID configuration is done through the controllers' BIOSes.
mfi supports monitoring of the logical
    disks in the controller through the
    bioctl(8) and
    envstat(8) commands.
mfi driver is able to send events to
  powerd(8) if a logical drive in
  the controller is not online. The state-changed event will
  be sent to the /etc/powerd/scripts/sensor_drive script
  when such condition happens.
mfi driver first appeared in NetBSD
  4.0.
| May 5, 2022 | NetBSD 10.1 |