moving lp's to another disk

when u cant immediately add diskspace to a system and cope with full disks a handy thing to do is move logical partions to another disk. as long as the disks are in the same volume group you can do the following:

find out on which disks a LV is residing and what numbers the logical partitions have:

lslv -m /my_lv

LP PP1 PV1 PP2 PV2 PP3 PV3
0001 0112 hdisk0
0002 0113 hdisk2
0003 0114 hdisk2

under LP is the logical partition number u need
To move lp 0001 from hdisk 0 to hdisk2

migratelp my_lv/1 hdisk0

If your lv is part of a mirror and you also want to move the copy to another disk you have to specify you want to also move its 2nd copy:

migratelp my_lv/1/2 (where 2 is not an lv number but to indicate its the 2nd copy)

More on migratelv can be found here:
http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.cmds/doc/aixcmds3/migratelp.htm