1.\" Copyright (c) 2000 Scott Long 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.Dd February 22, 2001 27.Dt AAC 4 28.Os 29.Sh NAME 30.Nm aac 31.Nd Adaptec AdvancedRAID Controller driver 32.Sh SYNOPSIS 33.Cd options AAC_COMPAT_LINUX 34.Cd options AAC_DEBUG=N 35.Cd device pci 36.Cd device aac 37.Sh DESCRIPTION 38The 39.Nm 40driver provides support for the Adaptec AAC family SCSI Ultra2 and Ultra160 41RAID controllers. 42These controllers support RAID 0, 1, 5, 10, and volume sets. 43They have four channels in the add-in version 44or 1-2 channels in the motherboard integrated version, 45and are most often found relabelled by Dell or Hewlett-Packard. 46Supported controllers include: 47.Bl -bullet 48.It 49AAC-364 50.It 51AAC-3642 52.It 53HP NetRAID 4M 54.It 55Dell PERC 2/Si 56.It 57Dell PERC 2/QC 58.It 59Dell PERC 3/Si 60.It 61Dell PERC 3/Di 62.Pp 63.El 64Access to RAID containers is available via the 65.Pa /dev/aacd? 66device nodes. 67Individual drives cannot be accessed 68unless they are part of a container or volume set, 69and non-fixed disks cannot be accessed. 70Containers can be configured by using 71either the on-board BIOS utility of the card, 72or a Linux-based management application. 73.Pp 74The 75.Pa /dev/aac? 76device nodes provides access to the management interface of the controller. 77One node exists per installed card. 78Compiling the driver with the 79.Dv AAC_COMPAT_LINUX 80option enables the Linux-compatible 81.Xr ioctl 2 82interface for the management device. 83The 84.Xr ioctl 2 85command set is heavily tailored to existing linux applications. 86Native 87.Xr ioctl 2 88support is not present at this time. 89.Sh FILES 90.Bl -tag -width /boot/kernel/aac.ko -compact 91.It Pa /dev/aac? 92aac management interface 93.It Pa /dev/aacd? 94disk/container interface 95.It Pa /boot/kernel/aac.ko 96aac loadable module 97.El 98.Sh DIAGNOSTICS 99Compiling with 100.Dv AAC_DEBUG 101set to a number between 0 and 3 102will enable increasingly verbose debug messages. 103.Pp 104The adapter can send status and alert messages asynchronously 105to the driver. These messages are printed on the system console, 106and are also queued for retrieval by a management application. 107.Sh SEE ALSO 108.Xr kld 4 , 109.Xr linux 4 , 110.Xr kldload 8 111.Sh HISTORY 112The 113.Nm 114driver first appeared in 115.Fx 4.3 116and is 117.Ud 118.Pp 119.Sh AUTHORS 120.An Mike Smith 121.Aq msmith@FreeBSD.org 122.An Scott Long 123.Aq scottl@FreeBSD.org 124.Sh BUGS 125This driver has not been tested on Alpha, though it should work. 126.Pp 127The controller is not actually paused on suspend/resume. 128.Pp 129Adapter-initiated messages are not returned back to the controller, 130possibly causing a resource leak on the controller. 131.Pp 132Unloading and reloading the driver as a kernel loadable module 133without rebooting the system is strongly discouraged. 134.Pp 135Only the Linux-compatible 136.Xr ioctl 2 137interface is implemented at this time. 138This is not a bug, but native 139.Xr ioctl 2 140support is desirable. 141