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MPIO Driver

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Operating Systems AIX MPIO Driver
# 1  
Old 07-23-2009
Error MPIO Driver
On a particular LPAR, I was running AIX 5.3 TL 3. On Monday I did an update of the LPAR to 5.3 TL 9 SP2. The install was smooth, but then I ran into a problem.

The MPIO driver does not work with LSI's StoreAge (SVM4). I did some looking, and looks like

5.3 TL3 = IBM.MPIO 5.3.0.30
5.3 TL9 SP2 = IBM.MPIO 5.3.9.2

I am in the process of trying to figure out how to go back to the previous version. I searched the forum and found this link....but not sure what this will gain me.
www.unix.com/aix/76390-need-help-uninstalling-devices-common-ibm-mpio-rte-5-3-a.html

I was thinking about recovering from the backupos I ran, as well as the file level backup from about a week ago. This should take me back to before the update....

Thoughts? Or should I just try to uninstall the MPIO package and put the older version on?
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LEARN ABOUT NETBSD

mpii

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
     system.  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