HP StorageWorks 4400, Installation Manual

Page: 71 / 86

Example 1. Verifying the VxVM configuration
#
vxddladm listsupport all | grep HP
libvxhpalua.so HP, COMPAQ
libvxxp1281024.so HP
libvxxp12k.so HP
#
vxddladm listsupport libname=libvxhpalua.so
ATTR_NAME ATTR_VALUE
=======================================================================
LIBNAME libvxhpalua.so
VID HP, COMPAQ
PID HSV101, HSV111 (C)COMPAQ, HSV111
HSV200, HSV210
ARRAY_TYPE A/A-A-HP
ARRAY_NAME EVA3000, EVA5000, EVA4K6K
EVA8000
#
vxdmpadm listapm all | grep HP
dmphpalua dmphpalua 1 A/A-A-HP Active
# vxdmpadm listapm dmphpalua
Filename: dmphpalua
APM name: dmphpalua
APM version: 1
Feature: VxVM
VxVM version: 40
Array Types Supported: A/A-A-HP
Depending Array Types: A/A-A
State: Active
#
vxdmpadm listenclosure all
ENCLR_NAME ENCLR_TYPE ENCLR_SNO STATUS ARRAY_TYPE
============================================================================
Disk Disk DISKS CONNECTED Disk
EVA80000 EVA8000 50001FE1002709E0 CONNECTED A/A-A-HP
By default, the EVA iopolicy is set to
Round-Robin
. For VxVM 4.1 MP1, only one path is used for
the I/Os with this policy. Therefore, HP recommends that you change the iopolicy to
Adaptive
in
order to use all paths to the LUN on the primary controller. Example 2 shows the commands you can
use to check and change the iopolicy.
Example 2. Setting the iopolicy
#
vxdmpadm getattr arrayname EVA8000 iopolicy
ENCLR_NAME DEFAULT CURRENT
============================================
EVA80000 Round-Robin Round-Robin
#
vxdmpadm setattr arrayname EVA8000 iopolicy=adaptive
#
vxdmpadm getattr arrayname EVA8000 iopolicy
ENCLR_NAME DEFAULT CURRENT
============================================
EVA80000 Round-Robin Adaptive
HP StorageWorks 4400 Enterprise Virtual Array installation guide 71