Product data

74 PowerVM Migration from Physical to Virtual Storage
On the standalone system
You have now migrated this system to a logical partition. If you wish to revert the
current disk configuration back to a pre alt_disk_copy scenario:
15.On the local system an AIX lsvg command shows that the ODM is unaware
that you have removed the SAN disk that was the target of the alt_disk_copy:
# lsvg
rootvg
altinst_rootvg
#
16.To clean up the system, use the AIX alt_rootvg_op command with the -X
flag:
# alt_rootvg_op -X
Bootlist is set to the boot disk: hdisk0 blv=hd5
17.An AIX lsvg command confirms that the clean up is successful:
# lsvg
rootvg
#
3.4 Other methods
There are a number of accepted methods that can also be used to perform the
migration. These methods include:
򐂰 NIM
򐂰 Backup and restore
򐂰 SAS-attached tape devices
An overview of these methods follows.
3.4.1 NIM
If you are familiar with the AIX Network Installation Manager (NIM) subsystem
then it is feasible to make a mksysb to a NIM storage area (normally an NFS
mount) and perform a NIM install in much the same way that 3.1, “Back up to CD
and restore” on page 46, performs an SMS boot from media. The difference is
that you load from the source through the network using the Ethernet card, and
not from virtual CD media.