Applies to All versions of ONTAP or Data ONTAP Issue Container Block Reclamation (CBR) scanners is a process of releasing unused blocks from volume space, i.e after snapshot deletions. In some instanc...Applies to All versions of ONTAP or Data ONTAP Issue Container Block Reclamation (CBR) scanners is a process of releasing unused blocks from volume space, i.e after snapshot deletions. In some instances, excessive CBR scanners can impact other work-loads.