HP MPX200 Multifunction Router - Manual (Page 84)

that is visible on both iSCSI and FC ports. This section describes only the iSCSI implementation of
MPxIO with the MPX200.
For more information about MPxIO, see the Solaris Fibre Channel and Storage Multipathing
Administration Guide, available at
http://docs.sun.com/source/819-0139 .
Preparing the host system
To verify that MPxIO is enabled:
1.
Enter the following command:
cat kernel/drv/iscsi.conf
2. Verify the MPxIO setting:
mpxio-disable=”no”
If the setting is yes, change it to no, and then reboot:
Reboot -- -r
Example: MPxIO on all iSCSI port settings in /kernel/dev/iscsi.conf
# Copyright 2006 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
#ident "@(#)iscsi.conf 1.2 06/06/12 SMI"
name="iscsi" parent="/" instance=0;
ddi-forceattach=1;
#
# I/O multipathing feature (MPxIO) can be enabled or disabled using
# mpxio-disable property. Setting mpxio-disable="no" will activate
# I/O multipathing; setting mpxio-disable="yes" disables the feature.
#
# Global mpxio-disable property:
#
# To globally enable MPxIO on all iscsi ports set:
# mpxio-disable="no";#
# To globally disable MPxIO on all iscsi ports set:
# mpxio-disable="yes";
#
mpxio-disable="no";
#
Enabling MPxIO for an HP P6000 EVA storage array
This section explains how to configure a Solaris server to recognize an HP storage array in an
iSCSI multipath environment with the MPX200.
Editing the scsi_vhci.conf file
HP storage arrays are supported with MPxIO:
•
As symmetric devices only
•
With no load balancing
•
With no failback
To configure MPxIO for HP storage arrays, you must add information to the /kernel/drv/
scsi_vhci.conf
file:
1. Use a text editor to modify the configuration file. For example:
# vi /kernel/drv/scsi_vhci.conf
2. Change load balancing to none:
load-balance="none";
84 MPX200 iSCSI configuration rules and guidelines