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Create a WPAR on the first node, on a VG wpar5vg with major number 50, if available. Check with command

[root@powerha1] # lvlstmajor
    37..49,52,54...

Then try to start and stop the WPAR
varyoffvg on the wpar5vg

on the second node import the vg:
importvg -V 50 -y wpar5vg hdisk2

Mount all filesystems from the volume group, if needed create the mount points

Then create the WPAR with preserve option, it will read the spec file from /wpars/wpar5/var/adm/ras/mkpar.spec

[root@powerha2] # mkwpar -p -n wpar5
mkwpar: Attaching to existing file systems...
        /wpars/wpar5
        /wpars/wpar5/app
        /wpars/wpar5/app/admin
        /wpars/wpar5/app/oracle
        /wpars/wpar5/app/oracle/flash_recovery_area
        /wpars/wpar5/app/oracle/oradata
        /wpars/wpar5/apps
        /wpars/wpar5/home
        /wpars/wpar5/opt
        /wpars/wpar5/opt/ORCLfmap
        /wpars/wpar5/proc
        /wpars/wpar5/root
        /wpars/wpar5/tmp
        /wpars/wpar5/usr
        /wpars/wpar5/var
        /wpars/wpar5/var/core
Workload partition wpar5 created successfully.
mkwpar: 0960-390 To start the workload partition, execute the following as root: startwpar [-v] wpar5

IMPORTANT Before integrated the resource into PowerHA, list all mount point from volume group, and try to mount it in the order of the lsvg -l command. Maybe some mount points are missing, especially into /usr or /opt if you use these from Global partition.

First import the VG containing the WPAR

Then copy the most files (maybe other if changed) from /etc/corrals/ : index , wpar1.cf, lastkey

Create a service called cor_wpar1

# mkssys -s "cor_wpar1" -p "/usr/lib/wpars/runwpar" -a "wpar1" -i "/dev/console" -o "/var/adm/ras/wpar.wpar1.srclog" -e "/var/adm/ras/wpar.wpar1.srclog" -u 0 -w 20 -S -n 30 -f 31 -R

For information here are all service parameters set

[root@powerha1]/etc/objrepos # odmget SRCsubsys | grep -p wpar1 
SRCsubsys:
        subsysname = "cor_wpar1"
        synonym = ""
        cmdargs = "wpar1"
        path = "/usr/lib/wpars/runwpar"
        uid = 0
        auditid = 0
        standin = "/dev/console"
        standout = "/var/adm/ras/wpar.wpar1.srclog"
        standerr = "/var/adm/ras/wpar.wpar1.srclog"
        action = 1
        multi = 0
        contact = 2
        svrkey = 0
        svrmtype = 0
        priority = 20
        signorm = 30
        sigforce = 31
        display = 1
        waittime = 20
        grpname = ""

Don't forget to copy all entries from /etc/filesystems related to the wpar1 (also /proc, /usr and /opt)