[dm-devel] Multipath setup and rdac questions

[Christian Røsnes]

On Thu, Feb 5, 2009 at 4:07 PM, Bryn M. Reeves <bmr at redhat.com> wrote:

> Christian Røsnes wrote:
>
>>

> I also see these messages in /var/log/messages when I change the
>> module controller ownership:
>>
>> 494 [RAIDarray.mpp]MD3000i_A:0:1:0 Cmnd-failed try alt ctrl 1.
>> vcmnd SN 351494 pdev H2:C0:T0:L0 0x05/0x94/0x01 0x08000002
>> mpp_status:1
>>
>
> Don't know where this is coming form. Do you have IBM's MPP
> multipathing driver installed? If you are using device-mapper
> multipath and multipath tools (the rest of your mail suggests this is
> your intention) you should not load the MPP modules.
>
> Hi

Thank you for the information.

I think the MPP driver came from the
linuxrdac-09.03.0C06.0030-1dkms rpm package
installed from the Dell MD3000i Resource CD,
because the top of the Makefile in /usr/src/linuxrdac-09.03.0C06.0030 reads:

#**********************************************************************
# Makefile for Linux RDAC (MPP) Driver
#
# This is a modified version of the linuxrdac Makefile provided by LSI
# (renamed to Makefile_orig).
# It is dkms compatable, and provides:
#    genuniqueid, mppUtil, install, uninstall
# The mppUpper and mppVhba targets are provided by dkms through obj-m
#
#######################################################################


It was maybe installed when I choose this option 3 from the installer on
that CD:

-------------------------------------------------------------------------------------------------------------


   ################################################################

                  Dell PowerVault MD3000i Resource CD

   ################################################################

 1. View MD3000i Readme
 2. Install MD3000i Storage Manager
 3. Install Multi-pathing Driver
 4. MD3000i Configuration Utility
 5. Dell Support
 6. View End User License Agreement

 Enter the number to select a component from the above list.
 Enter q to quit.

 Enter: 3

-------------------------------------------------------------------------------------------------------------


Is mpp another type of rdac driver than the one in question here ?


Thank you
Christian
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