reorgvg

hello

I have launched a reorgvg this week end, on a logical volume
Before the reorgvg, I had:
disk5
disk6
disk7
disk8

I have defined the lv with "maximum" disk, and launch the reorgvg
Now i have:
disk5
disk6
disk7
disk8
disk11
disk12
disk14

I don't understand why there are 3 another disks ??? it is a problem ?

and here the lslv -l result :
hdiskpower5 5158:000:000 27% 1427:1427:1427:877:000
hdiskpower6 927:000:000 73% 250:677:000:000:000
hdiskpower7 1145:000:000 0% 377:000:000:384:384
hdiskpower8 644:000:000 0% 000:000:000:000:644
hdiskpower11 874:000:000 0% 256:000:136:256:226
hdiskpower12 451:000:000 0% 000:000:000:131:320
hdiskpower14 176:000:000 0% 000:000:000:000:176

apparently the result of reorgvg is not good ?

thank you for your help