Dell PowerStore 1200T EMC PowerStore Host Configuration Guide - Page 79

Updating scsi_vhci.conf configuration file, PowerPath Configuration with PowerStore Volumes

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Updating scsi_vhci.conf configuration file About this task The scsi_vhci.conf file is used to configure third-party storage multipathing parameters on Solaris 11 hosts, based on SCSI inquiry responses. The host sends SCSI inquiry commands and, based on the returned data, MPxIO driver activates the corresponding multipathing module. The load-balancing and failover policies are also configured, based on the settings in the scsi_vhci.conf file. Steps 1. Run the following command to verify the scsi_vhci.conf file location: # ls /etc/driver/drv/ 2. If the file is not in the expected location, run the following command to copy it from /kernel/drv: # cp /kernel/drv/scsi_vhci.conf /etc/driver/drv 3. Run the following commands to create a backup copy of the scsi_vhci.conf file: # cp -p /etc/driver/drv/scsi_vhci.conf /etc/driver/drv/scsi_vhci.conf_ORIG 4. Modify the scsi_vhci.conf file by adding the following recommended entries for PowerStore storage: load-balance="round-robin"; auto-failback="enable"; scsi-vhci-update-pathstate-on-reset="DellEMC PowerStore", "yes"; scsi-vhci-failover-override="DellEMC PowerStore", "f_tpgs"; Parameter load-balance auto-failback scsi-vhci-update-pathstateon-reset scsi-vhci-failover-override Description Value Specifies the default load-balancing policy. Possible values are none, logical-block, round-robin round-robin Specifies whether LUN access should be restored on the path restore. Possible values are enable, disable enable Enable path status update on reset. yes Possible values are yes, no Add a third-party (non-Sun) storage device to run under scsi_vhci (and by that take advantage of scsi_vhci multipathing), using the vendor ID "DellEMC PowerStore" and product ID "f_tpgs" corresponding to the Dell EMC PowerStore device. f_tpgs (Target Port Groups, ALUA) PowerPath Configuration with PowerStore Volumes PowerStore supports multipathing using Dell EMC PowerPath on a Solaris host. For the most updated information about PowerPath support with PowerStore, see the PowerStore SImple Support Matrix. For details on installing and configuring PowerPath with PowerStore on your host, see Dell EMC PowerPath on Solaris Installation and Administration Guide for the PowerPath version you are installing. Host Configuration for Solaris 79

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Updating scsi_vhci.conf configuration file
About this task
The scsi_vhci.conf file is used to configure third-party storage multipathing parameters on Solaris 11 hosts, based on SCSI
inquiry responses. The host sends SCSI inquiry commands and, based on the returned data, MPxIO driver activates the
corresponding multipathing module. The load-balancing and failover policies are also configured, based on the settings in the
scsi_vhci.conf file.
Steps
1.
Run the following command to verify the scsi_vhci.conf file location:
# ls /etc/driver/drv/
2.
If the file is not in the expected location, run the following command to copy it from
/kernel/drv
:
# cp /kernel/drv/scsi_vhci.conf /etc/driver/drv
3.
Run the following commands to create a backup copy of the scsi_vhci.conf file:
# cp -p /etc/driver/drv/scsi_vhci.conf /etc/driver/drv/scsi_vhci.conf_ORIG
4.
Modify the scsi_vhci.conf file by adding the following recommended entries for PowerStore storage:
load-balance="round-robin";
auto-failback="enable";
scsi-vhci-update-pathstate-on-reset="DellEMC PowerStore", "yes";
scsi-vhci-failover-override="DellEMC PowerStore", "f_tpgs";
Parameter
Description
Value
load-balance
Specifies the default load-balancing
policy. Possible values are
none,
logical-block, round-robin
round-robin
auto-failback
Specifies whether LUN access
should be restored on the path
restore. Possible values are
enable,
disable
enable
scsi-vhci-update-pathstate-
on-reset
Enable path status update on reset.
Possible values are
yes, no
yes
scsi-vhci-failover-override
Add a third-party (non-Sun) storage
device to run under
scsi_vhci
(and
by that take advantage of
scsi_vhci
multipathing), using the vendor
ID
"DellEMC PowerStore"
and
product ID
"f_tpgs"
corresponding
to the Dell EMC PowerStore device.
f_tpgs
(Target Port Groups, ALUA)
PowerPath Configuration with PowerStore Volumes
PowerStore supports multipathing using Dell EMC PowerPath on a Solaris host.
For the most updated information about PowerPath support with PowerStore, see the
PowerStore SImple Support Matrix
.
For details on installing and configuring PowerPath with PowerStore on your host, see
Dell EMC PowerPath on Solaris
Installation and Administration Guide
for the PowerPath version you are installing.
Host Configuration for Solaris
79