mfii(4)

mfii4

Lsi logic megaraid sas fusion raid controller

Usage

mfii* at pci?

Overview

The mfii driver provides support for the MegaRAID SAS Fusion family of RAID controllers using the following chipsets:

  • SAS2208

  • SAS3008

  • SAS3108

  • SAS3404

  • SAS3408

  • SAS3416

  • SAS3504

  • SAS3508

  • SAS3516

  • SAS3816

  • SAS3916

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, they appear as SCSI controllers. All RAID configuration is done through the controllers' BIOSes.

Releases

29 releases since OpenBSD 5.3; the text changed 5 times.

  1. 5.3
  2. 5.4–5.6
  3. 5.7–6.0
  4. 6.1–6.3
  5. 6.4–7.4
  6. 7.5–8.0

History

The mfii driver first appeared in OpenBSD 5.3.

Authors

The mfii driver was written by David Gwynne ⟨[email protected]⟩.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.