1 .\" Copyright (c) 2000 Scott Long
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
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.
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
25 .\" $FreeBSD: src/share/man/man4/aac.4,v 1.3.2.8 2001/09/27 22:01:38 scottl Exp $
31 .Nd Adaptec AdvancedRAID Controller driver
33 .Cd options AAC_COMPAT_LINUX
34 .Cd options AAC_DEBUG=N
40 driver provides support for the Adaptec AAC family SCSI Ultra2 and Ultra160
42 These controllers support RAID 0, 1, 5, 10, and volume sets.
43 They have four channels in the add-in version
44 or 1-2 channels in the motherboard integrated version,
45 and are most often found relabeled by Dell or Hewlett-Packard.
46 Supported controllers include:
51 Adaptec SCSI RAID 5400S
64 Access to RAID containers is available via the
67 Individual drives cannot be accessed
68 unless they are part of a container or volume set,
69 and non-fixed disks cannot be accessed.
70 Containers can be configured by using
71 either the on-board BIOS utility of the card,
72 or a Linux-based management application.
76 device nodes provide access to the management interface of the controller.
77 One node exists per installed card.
82 exist for the Dell and HP flavors, respectively, and are required for
83 the CLI management utility available from these vendors to work.
84 Compiling the driver with the
86 option enables the Linux-compatible
88 interface for the management device.
92 defaults to 65536 and may be set at boot time to another value via
94 This value determines the maximum data transfer size allowed
96 Setting it higher will result in better performance,
97 especially for large sequential access patterns.
100 of the card limit this value to 64K for arrays with many members.
101 While it may be safe to raise this value, this is done
102 .Em at the operator's own risk .
104 performance peaks at a value of 96K,
105 and drops off dramatically at 128K,
106 due to other limitations of the card.
108 .Bl -tag -width /boot/kernel/aac.ko -compact
110 aac management interface
112 disk/container interface
113 .It Pa /boot/kernel/aac.ko
119 set to a number between 0 and 3
120 will enable increasingly verbose debug messages.
122 The adapter can send status and alert messages asynchronously
124 These messages are printed on the system console,
125 and are also queued for retrieval by a management application.
135 driver first appeared in
139 .Aq msmith@FreeBSD.org
141 .Aq scottl@FreeBSD.org
143 This driver is not compatible with controllers that have version 1.x firmware.
144 The firmware version is the same as the kernel version printed in the BIOS
145 POST and driver attach messages.
147 This driver will not work on systems with more than 4GB of memory.
149 The controller is not actually paused on suspend/resume.
151 Unloading driver is not supported at this time.