bionic (4) ida.4freebsd.gz

Provided by: freebsd-manpages_11.1-3_all bug

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:

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


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.


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>.