Which two statements are appropriate practices for storage pool backup for IBM Tivoli Storage Manager V6.2 (TSM)? (Choose two.)

A.
Migrate data to all copy pools.

B.
Enable caching on all storage pools.

C.
Back up the TSM database and then back up the storage pools.

D.
Back up each primary storage pool to the same copy pool every time.

E.
Setreusedelay in the copy storage pool to match the drmdbbackupexpiredays.