Creating a WPAR as a system copy
Instead of installing a WPAR with the default set of files, you can create a WPAR as a copy of an existing system.
The default method of creating a WPAR populates the new partition with a default set of installation files, system configuration files, and file systems. An alternative approach is to create a WPAR as a copy of an existing system.
A system copy WPAR can be created as a copy of the running system or it can be created from a system backup image.
- Filesets that were marked as not visible in a WPAR from the global system or the system backup image are removed from the WPAR unless -T preserve_private=yes is specified on the mkwpar command line or the preserve_private attribute of a copy_controls stanza is set to yes in a WPAR specification file.
- File systems that are associated with WPARs on a running system are excluded from a system copy WPAR created from that system unless -T preserve_wpars=yes is specified on the mkwpar command or the preserve_wpars attribute of a copy_controls stanza is set to yes in a WPAR specification file. The preserve_wpars attribute is ignored when a WPAR is created from a system backup image.
- Customized device information from the source is not copied into the WPAR. The customized device information within the created WPAR reflects the devices that are available to the WPAR.
A system copy WPAR that is created from a system backup image must be at the same system level as the hosting system before the WPAR can be started or become active. If the levels are not compatible, the administrator must use the syncwpar command to bring the WPAR to the level of the hosting system. The initial level of the system backup image must be at least AIX® 4.3.3.
The -G and -x options to the system backup commands enable a system backup image to be used to create a system copy WPAR. The -x flag is only necessary if the /usr and /opt file systems need to be excluded from the system backup image to create a shared WPAR from the system copy.