So you want an AIX versioned WPAR?

nicolas — Fri, 05 Sep 2025 15:41:54 +0000

You cannot get rid of your oldies but goodies AIX 5.x? No problemo, create an AIX versioned WPAR. In our example, we create an AIX5.3 on a AIX 7.2 host lpar:

rendev -l hdisk1 -n aix53_rootvg
mkwpar -D devname=aix53_rootvg rootvg=yes -C -B /mksysb/mksysb0139 -t -n aix53 -l -O
[...]

Once created, you can then wait for the migration day with confidence. Once the source lpar has been shutdowned, configure the IP addresses into the wpar:

chwpar -N interface=en0 address=10.30.191.130 netmask=255.255.255.0 aix53
chwpar -N interface=en0 address=10.30.191.131 netmask=255.255.255.0 aix53
chwpar -N interface=en0 address=10.30.191.132 netmask=255.255.255.0 aix53

chwpar -N interface=en1 address=10.30.194.130 netmask=255.255.255.0 aix53
chwpar -N interface=en1 address=10.30.194.131 netmask=255.255.255.0 aix53
chwpar -N interface=en1 address=10.30.194.132 netmask=255.255.255.0 aix53

You can do so for multiple addresses, including IP aliases into the wpar on the same physical interface/

To map new or migrated disks (by SAN for example), you can use this same chwpar command:

chwpar -D devname=hdisk2 devtype=disk aix53
chwpar -D devname=hdisk3 devtype=disk aix53
chwpar -D devname=hdisk4 devtype=disk aix53

Once the disks are added, login into the wpar using clogin, and pass a cfgmgr in order to load the newly mapped disks. You should then be able to import your Volume Group and or create a new one.

Have fun :/

virtualisation – Strava LTD

So you want an AIX versioned WPAR?