1 .\" $FreeBSD: src/share/man/man4/ida.4,v 1.1.2.2 2003/03/03 18:51:16 trhodes Exp $
2 .\" Written by Tom Rhodes
3 .\" This file is public domain
10 .Nd Compaq Intelligent Drive Array Controllers
15 The Compaq Intelligent Drive Array (IDA) technology is used to
16 distribute data across an array of hard drives.
17 It unites these hard drives into one or more high-performance logical drives.
18 The drive array is managed by an array controller.
20 These controllers have the ability to provide fault tolerance for the connected
21 drives and optionally provide write cache for the logical drives.
22 It is also possible for an application to access the SCSI bus subsystem
23 directly by using the pass-through interface.
25 The following controllers are supported by the
31 Compaq SMART Array 221
33 Compaq Integrated SMART Array Controller
35 Compaq SMART Array 4200
37 Compaq SMART Array 4250ES
39 Compaq SMART 3200 Controller
41 Compaq SMART 3100ES Controller
43 Compaq SMART-2/DH Controller
45 Compaq SMART-2/SL Controller
47 Compaq SMART-2/P Controller
49 Compaq SMART-2/E Controller
51 Compaq SMART Controller
53 .Sh IMPLEMENTATION NOTES
54 Extreme caution should be exercised when using the pass-through interface.
55 It is possible to interfere with normal system I/O and cause hangs if
56 pass-through is used to an active device.
57 Pass-through should only be used to a device that is otherwise quiescent.
59 .Bl -tag -width ".Pa /dev/idadX" -compact
74 .An Jonathan Lemon Aq Mt jlemon@FreeBSD.org
76 .An Matthew N. Dodd Aq Mt mdodd@FreeBSD.org .
77 This manual page was written by
78 .An Tom Rhodes Aq Mt trhodes@FreeBSD.org .