AVM different lun sizes in one pool

Hi,

Customer of us is using a custom made pool which consists of two luns build on top of a 8+1R5 RG 146GB FC disks.

He is running out of disk space so we where ready to sell him extra tray with again 8+1R5 146GB FC disks.

But it looks like the 146GB FC disks are not for sale anymore, can't select them in ChannelExpress anymore.

So in stead of using the 146GB we can offer him 8+1R5 300GB FC disks. What would be the best practise to bind the luns. Just split the RG in two and assign the two new luns to the custom storage pool or is there some better way to build and assign the new luns.

Regards,

John