63 lines
1.8 KiB
Groff
63 lines
1.8 KiB
Groff
|
.\" $FreeBSD$
|
||
|
|
.\" Written by Tom Rhodes
|
||
|
|
.\" This file is public domain
|
||
|
|
.\"
|
||
|
|
.Dd January 05, 2003
|
||
|
|
.Dt IDA 4
|
||
|
|
.Os
|
||
|
|
.Sh NAME
|
||
|
|
.Nm ida
|
||
|
|
.Nd Compaq Intelligent Drive Array Controllers
|
||
|
|
.Sh SYNOPSIS
|
||
|
|
For one or more devices:
|
||
|
|
.Cd device scbus
|
||
|
|
.Cd device ida
|
||
|
|
.Sh DESCRIPTION
|
||
|
|
.Pp
|
||
|
|
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 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 COMPATIBILITY
|
||
|
|
.Pp
|
||
|
|
The following controllers are supported by the
|
||
|
|
.Nm
|
||
|
|
driver:
|
||
|
|
.Bl -tag -compact -width "Supported Devices"
|
||
|
|
.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 SEE ALSO
|
||
|
|
.Xr cam 4 ,
|
||
|
|
.Xr pass 4 ,
|
||
|
|
.Xr xpt 4 ,
|
||
|
|
.Xr camcontrol 8 .
|
||
|
|
.Sh AUTHORS
|
||
|
|
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 .
|