---
name: "iir"
section: "4freebsd"
platform: "linux"
package: "freebsd-manpages"
version: "12.2-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/iir/4freebsd"
---

# iir(4freebsd)

Intel Integrated RAID controller and ICP Vortex driver

## NAME

**iir** – Intel Integrated RAID controller and ICP Vortex driver

## SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file:

**device pci** **device scbus** **device iir**

Alternatively, to load the driver as a module at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
iir_load="YES"
```

## DESCRIPTION

The **iir** driver claims to interface with the Intel integrated RAID controller cards, and all versions of the ICP Vortex controllers (including FC).

## HARDWARE

Controllers supported by the **iir** driver include:

- Intel RAID Controller SRCMR

- Intel Server RAID Controller U3-l (SRCU31a)

- Intel Server RAID Controller U3-1L (SRCU31La)

- Intel Server RAID Controller U3-2 (SRCU32)

- All past and future releases of Intel and ICP RAID Controllers.

- Intel RAID Controller SRCU21 (discontinued)

- Intel RAID Controller SRCU31 (older revision, not compatible)

- Intel RAID Controller SRCU31L (older revision, not compatible)

The SRCU31 and SRCU31L can be updated via a firmware update available from Intel.

## SEE ALSO

[cam(4)](/cam/4.md), [pass(4)](/pass/4.md), [xpt(4)](/xpt/4.md), [camcontrol(8)](/camcontrol/8.md)

## AUTHORS

The **iir** driver is supported and maintained by Achim Leubner ⟨*Achim\_Leubner@adaptec.com*⟩.

This manual page was written by Tom Rhodes ⟨*trhodes@FreeBSD.org*⟩ and is based on information supplied by the driver authors and the website of Mike Smith ⟨*msmith@FreeBSD.org*⟩.