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MPII(4)			 BSD Kernel Interfaces Manual		       MPII(4)

NAME
     mpii — LSI Logic Fusion-MPT Message Passing Interface II

SYNOPSIS
     mpii* at pci? dev ? function ?

DESCRIPTION
     The mpii driver provides support for storage controllers using the LSI
     Logic Fusion-MPT Message Passing Interface II family of chipsets:

	   -   LSISAS2004, LSISAS2008

     These chipsets can be found on the following controllers:

	   -   Dell PERC H200
	   -   LSI SAS 9200-8e, SAS 9211-4i, SAS 9211-8i

     Some models of these controllers have varying degrees of support for RAID
     0 and RAID 1.

     mpii supports monitoring of the logical disks in the controller through
     the bioctl(8) and envstat(8) commands.

EVENTS
     The mpii driver is able to send events to powerd(8) if a logical drive in
     the controller is not online.  The state-changed event will be sent to
     the /etc/powerd/scripts/sensor_drive script when such condition happens.

SEE ALSO
     intro(4), pci(4), scsi(4), sd(4), bioctl(8), envstat(8), powerd(8)

HISTORY
     The mpii driver first appeared in OpenBSD 4.7.

AUTHORS
     The mpii driver was written by James Giannoules and Mike Belopuhov.

BUGS
     The chips supported by mpii do not use a SCSI-like identifier.  Instead
     they use an opaque ID and leave discovery order up to the operating sys‐
     tem.  The code to handle this is currently not implemented and therefore
     it is not a good idea to run this driver on a multi-boot machine or with
     more than 1 drive.

BSD				April 19, 2012				   BSD

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