Legacy HDS Forums

mpxio and AMS1000

Discussion created by Legacy HDS Forums on Jul 11, 2007
Latest reply on Jan 15, 2008 by Legacy HDS Forums

Originally posted by: Anderson Krahn



OUr infrastructure consists of solaris 10 machines, with qlogic cards and a Tagmastore Ams 1000 San array.
Currently,
we are using a mixture of veritas and mpxio....
Here are the files that are used for configuring mpxio
cat fp.conf
#
# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# Sun Fibre Channel Port driver configuration
#
#ident  "@(#)fp.conf    1.4     06/06/22 SMI"
#

name="fp" class="fibre-channel" port=0;
name="fp" class="fibre-channel" port=1;

#
# Automatic configuration of the fabric is turned on by default
# and thus allows all devices discovered in the SAN zone to be
# enumerated in the Solaris devinfo tree automatically.
#
# The manual_configuration_only property may be used to
# disable the default behavior and force the manual configuration of
# the devices in the SAN. Setting manual_configuration_only=1
# will disable the automatic configuration of devices.
# NOTE: Use of this property is not recommended. If used, the
# fabric devices accessed at boot time need to get manually configured
# before the next reboot. Otherwise, fabric devices that are needed at
# boot time may not get configured and may cause boot problems.
# To manually configure fabric devices, refer to cfgadm_fp(1M).
# manual_configuration_only=1;
#

#
# To generate the binding-set specific 'compatible' forms used to address
# legacy issues the 'scsi-binding-set' property must be defined. (do not remove)
#
scsi-binding-set="fcp";

#
# List of ULP modules for loading during port driver attach time
#
load-ulp-list="1","fcp";

#
# Force attach driver to support hotplug activity (do not remove the property)
#
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 fp ports set:
#
# To globally disable MPxIO on all fp ports set:
# mpxio-disable="yes";
#
# Per port mpxio-disable property:
#
# You can also enable or disable MPxIO on a per port basis.
# Per port settings override the global setting for the specified ports.
# To disable MPxIO on port 0 whose parent is /pci@8,600000/SUNW,qlc@4 set:
# name="fp" parent="/pci@8,600000/SUNW,qlc@4" port=0 mpxio-disable="yes";
#
# NOTE: If you just want to enable or disable MPxIO on all fp ports, it is
# better to use stmsboot(1M) as it also updates /etc/vfstab.
#
#
# You can describe a list of target port WWNs and LUN numbers which will
# not be configured. LUN numbers will be interpreted as decimal. White
# spaces and ',' can be used in the list of LUN numbers.
#
# pwwn-lun-blacklist=
# "target-port-wwn,lun-list"
#
# To prevent LUNs 1 and 2 from being configured for target
# port 510000f010fd92a1 and target port 510000e012079df1, set:
#
# pwwn-lun-blacklist=
# "510000f010fd92a1,1,2",
# "510000e012079df1,1,2";
#mpxio-disable="yes";
mpxio-disable="no";


cat scsi_vhci.conf
#
# Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#pragma ident   "@(#)scsi_vhci.conf     1.9     04/08/26 SMI"
#
name="scsi_vhci" class="root";
#
# Load balancing global configuration: setting load-balance="none" will cause
# all I/O to a given device (which supports multipath I/O) to occur via one
# path.  Setting load-balance="round-robin" will cause each path to the device
# to be used in turn.
#
load-balance="none";
#
# Automatic failback configuration
# possible values are auto-failback="enable" or auto-failback="disable"
auto-failback="enable";
#
# For enabling MPxIO support for 3rd party symmetric device need an
# entry similar to following in this file. Just replace the "SUN     SENA"
# part with the Vendor ID/Product ID for the device, exactly as reported by
# Inquiry cmd.
#
# device-type-scsi-options-list =
# "SUN     SENA", "symmetric-option";
#
# symmetric-option = 0x1000000;
device-type-scsi-options-list =
"HITACHI DF600F ", "symmetric-option";
symmetric-option = 0x1000000;


The question i had regarding presenting multiple luns on a host.
If i had
H-lun 0000  with a default controller 0
H-lun 0001  with a default controller 1

Will mpxio know to use hba0 for H-lun 0 and hba1 for H-lun1, or would i get traffic between the controllers on the AMS1000 due to all the traffic going through hba0.

Thanks,
Anderson

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