WhichtwoaretheusesoftheASMmetadatabackupandrestore（AMBR）feature？（）

A.ItcanbeusedtobackupalldataonASMdisks.
B.ItcanbeusedtorecoverthedamagedASMdiskgroupalongwiththedata.
C.ItcanbeusedtogatherinformationaboutapreexistingASMdiskgroupwithdiskpaths，diskname，failuregroups，attributestemplates，andaliasdirectorystructure.
D.Itcanbeusedtore-createtheASMdiskgroupwithitsattributes.

【参考答案】

C, D