CPP0605109E Logical Volume IPLVOL cannot be placed on the same physical disk used by the Standalone Dump Bootstrap.
Explanation
You attempted to assign logical volume IPLVOL to the physical volume that is to be used for the standalone dump program. You cannot place the IPL text and the standalone dump program on the same physical volume.
The standalone dump program is placed on the physical volume that contains the data set SYS1.PAGEDUMP.
System programmer response
Specify a different physical volume.