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IDA(4)		       FreeBSD Kernel Interfaces Manual			IDA(4)

NAME
     ida -- Compaq Intelligent Drive Array Controllers

SYNOPSIS
     To	compile	this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device scbus
	   device ida

     Alternatively, to load the	driver as a module at boot time, place the
     following line in loader.conf(5):

	   ida_load="YES"

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.

     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.

HARDWARE
     The following controllers are supported by	the ida	driver:

     +o	 Compaq	SMART Array 221
     +o	 Compaq	Integrated SMART Array Controller
     +o	 Compaq	SMART Array 4200
     +o	 Compaq	SMART Array 4250ES
     +o	 Compaq	SMART 3200 Controller
     +o	 Compaq	SMART 3100ES Controller
     +o	 Compaq	SMART-2/DH Controller
     +o	 Compaq	SMART-2/SL Controller
     +o	 Compaq	SMART-2/P Controller
     +o	 Compaq	SMART-2/E Controller
     +o	 Compaq	SMART Controller

IMPLEMENTATION NOTES
     Extreme caution should be exercised when using the	pass-through inter-
     face.  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.

SEE ALSO
     cam(4), pass(4), xpt(4), camcontrol(8)

AUTHORS
     The ida driver was	written	by Jonathan Lemon <jlemon@FreeBSD.org> and
     Matthew N.	Dodd <mdodd@FreeBSD.org>.  This	manual page was	written	by Tom
     Rhodes <trhodes@FreeBSD.org>.

FreeBSD	10.1			August 8, 2004			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | HARDWARE | IMPLEMENTATION NOTES | SEE ALSO | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=ida&sektion=4&manpath=FreeBSD+8.1-RELEASE>

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