mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
85 lines
2.0 KiB
Groff
85 lines
2.0 KiB
Groff
.\" $FreeBSD$
|
|
.\" Written by Tom Rhodes
|
|
.\" This file is public domain
|
|
.\"
|
|
.Dd August 8, 2004
|
|
.Dt IDA 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm ida
|
|
.Nd Compaq Intelligent Drive Array Controllers
|
|
.Sh SYNOPSIS
|
|
To compile this driver into the kernel,
|
|
place the following lines in your
|
|
kernel configuration file:
|
|
.Bd -ragged -offset indent
|
|
.Cd "device scbus"
|
|
.Cd "device ida"
|
|
.Ed
|
|
.Pp
|
|
Alternatively, to load the driver as a
|
|
module at boot time, place the following line in
|
|
.Xr loader.conf 5 :
|
|
.Bd -literal -offset indent
|
|
ida_load="YES"
|
|
.Ed
|
|
.Sh DESCRIPTION
|
|
The Compaq Intelligent Drive Array (IDA) technology is used to
|
|
distribute data across an array of hard drives.
|
|
It unites these hard drives into one or more high-performance logical drives.
|
|
The drive array is managed by an array controller.
|
|
.Pp
|
|
These controllers have the ability to provide fault tolerance for the connected
|
|
drives and optionally provide write cache for the logical drives.
|
|
It is also possible for an application to access the SCSI bus subsystem
|
|
directly by using the pass-through interface.
|
|
.Sh HARDWARE
|
|
The following controllers are supported by the
|
|
.Nm
|
|
driver:
|
|
.Pp
|
|
.Bl -bullet -compact
|
|
.It
|
|
Compaq SMART Array 221
|
|
.It
|
|
Compaq Integrated SMART Array Controller
|
|
.It
|
|
Compaq SMART Array 4200
|
|
.It
|
|
Compaq SMART Array 4250ES
|
|
.It
|
|
Compaq SMART 3200 Controller
|
|
.It
|
|
Compaq SMART 3100ES Controller
|
|
.It
|
|
Compaq SMART-2/DH Controller
|
|
.It
|
|
Compaq SMART-2/SL Controller
|
|
.It
|
|
Compaq SMART-2/P Controller
|
|
.It
|
|
Compaq SMART-2/E Controller
|
|
.It
|
|
Compaq SMART Controller
|
|
.El
|
|
.Sh IMPLEMENTATION NOTES
|
|
Extreme caution should be exercised when using the pass-through interface.
|
|
It is possible to interfere with normal system I/O and cause hangs if
|
|
pass-through is used to an active device.
|
|
Pass-through should only be used to a device that is otherwise quiescent.
|
|
.Sh SEE ALSO
|
|
.Xr cam 4 ,
|
|
.Xr pass 4 ,
|
|
.Xr xpt 4 ,
|
|
.Xr camcontrol 8
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
The
|
|
.Nm
|
|
driver was written by
|
|
.An Jonathan Lemon Aq jlemon@FreeBSD.org
|
|
and
|
|
.An Matthew N. Dodd Aq mdodd@FreeBSD.org .
|
|
This manual page was written by
|
|
.An Tom Rhodes Aq trhodes@FreeBSD.org .
|