1 .\" $FreeBSD: src/share/man/man4/ida.4,v 1.1.2.2 2003/03/03 18:51:16 trhodes Exp $
2 .\" $DragonFly: src/share/man/man4/ida.4,v 1.3 2007/04/04 18:36:55 swildner Exp $
3 .\" Written by Tom Rhodes
4 .\" This file is public domain
11 .Nd Compaq Intelligent Drive Array Controllers
16 The Compaq Intelligent Drive Array (IDA) technology is used to
17 distribute data across an array of hard drives.
18 It unites these hard drives into one or more high-performance logical drives.
19 The drive array is managed by an array controller.
21 These controllers have the ability to provide fault tolerance for the connected
22 drives and optionally provide write cache for the logical drives.
23 It is also possible for an application to access the SCSI bus subsystem
24 directly by using the pass-through interface.
26 The following controllers are supported by the
32 Compaq SMART Array 221
34 Compaq Integrated SMART Array Controller
36 Compaq SMART Array 4200
38 Compaq SMART Array 4250ES
40 Compaq SMART 3200 Controller
42 Compaq SMART 3100ES Controller
44 Compaq SMART-2/DH Controller
46 Compaq SMART-2/SL Controller
48 Compaq SMART-2/P Controller
50 Compaq SMART-2/E Controller
52 Compaq SMART Controller
54 .Sh IMPLEMENTATION NOTES
55 Extreme caution should be exercised when using the pass-through interface.
56 It is possible to interfere with normal system I/O and cause hangs if
57 pass-through is used to an active device.
58 Pass-through should only be used to a device that is otherwise quiescent.
69 .An Jonathan Lemon Aq jlemon@FreeBSD.org
71 .An Matthew N. Dodd Aq mdodd@FreeBSD.org .
72 This manual page was written by
73 .An Tom Rhodes Aq trhodes@FreeBSD.org .