How to delete an Offline Pool in the Clariion CX4

Hello,

we are about decommission our old Clariion CX4-240

We wanted wipe all the hard disks and have organize them in several pools.

After Pool initializing some disks gone broken, two pools became offline, and we can not delete them.

There is no productive date what we must recover. We just want delete the pools and reorganize them.

How can an offline Pool be deleted?

Thank You!