Note the following with regard to Oracle Automatic Storage Management Administrator’s Guide (E85723):
In Chapter 4, “Administering Oracle ASM Disk Groups”, in the section titled “Managing Oracle ASM Flex Disk Groups”, in the sub-section titled “About Oracle ASM File Groups”, the following item should be added to the list that provides important notes about file groups:
When you drop a database, a related Oracle AsM file group is not automatically dropped. You must manually drop the related file group.
In Chapter 4, “Administering Oracle ASM Disk Groups”, in the section titled“Summary of Disk Group Attributes”, in the sub-section titled “THIN_PROVISIONED”, the Note should be changed to read:
THIN_PROVISIONEDattribute is supported only with Oracle ASM Filter Driver (Oracle ASMFD) in Oracle Grid Infrastructure 12.2 and later releases on Linux. For information about Oracle ASMFD, refer to the section titled "Oracle ASM Filter Driver".