Destroing Storage Pool on Array, with absence of one DAE.

Dear colleagues,

May be somebody knows how to solve this problem. We have VNX 5300 array, one of DAE from this array was excluded from this array to another one. But one storage pool on the array was configured, using removed DAE. Now we try remove this storage pool, but without any results. We got error: "Unable to destroy the Storage Pool. Remove any LUNs in the pool and verify that the pool is accessible, then retry the operation. (0x712d850f)" There are no LUN on this pool. This pool is Offline, when you show through Unisphere interface.

Will be thankfull for any help!