An administrator plans to migrate an LPAR from one host to another using a mksysb restore. The source system has a mirrored rootvg on two 72GB disks. The destination system has one 72GB disk. Which…

The target_disk_data stanza in bosinst.data specifies which physical disk to install to, but it has no mechanism to reduce the number of LV mirror copies encoded in image.data, so the restore would still fail due to the missing second disk.

'Shrink Filesystems' reduces filesystem sizes to fit smaller targets and 'Use Maps' controls partition placement, but neither option removes the mirrored-copy requirement that is defined per-LV in image.data, so a second disk is still required.

The image.data file governs LV layout during a mksysb restore, including the COPIES stanza (number of mirror copies), lv_source_disk_list (which physical disks to use), and PP counts for each logical volume. Setting COPIES to 1 and adjusting the PP and lv_source_disk_list values for every LV removes the mirror requirement, allowing all physical partitions to be allocated on the single 72GB destination disk. Without these edits the restore fails immediately because BOS installation cannot satisfy the request for a second mirror copy on a non-existent disk.

There is no supported 'mirror=false' attribute under logical_volume_policy in image.data; removing mirroring correctly requires setting the COPIES field to 1 and updating PP counts within each individual LV stanza.