This happens, because when the VG and LVs were created, there was no restriction on which PVs they will go - ie. none selected it from smit or mkvg or mklv.
If none was selected, they take whatever hdisk has free space and is member of that VG.
Since there is no mirror (as you can see by the number of PPs which is the same amount for LPs) even parameters like
Quote:
EACH LP COPY ON A SEPARATE PV ?: yes
are not taken into account, since you have
for each LV.
If you are using an internal raid controller or external raid disks for rootvg, all might be good. If not, I recommend strongly that you get a 4th or 5th and 6th disk (if the space is sufficient then) and start (AIX) mirroring all the LVs (lvcopy).
Else if you have a crash, you have to rely solely on your mksysb, after replacing defect disk(s).
After everything is mirrored, you will have to use "migratelp" to move each copy of an LP (PP) to another hdisk, so that the mirror makes sense in the end.