{ASMディスクグループ}ディスクを置換

https://docs.oracle.com/cd/F19136_01/ostmg/alter-diskgroups.html#GUID-2BD060BC-EF48-414D-9B24-3C4B2FD6E260

alter diskgroup test2 offline DISK disk21;

ALTER DISKGROUP test2 REPLACE DISK disk21 WITH '/dev/sdh'  POWER 3 ; 

select * from v$asm_diskgroup order by group_number;

select group_number,disk_number,name,label,
    HEADER_STATUS,TOTAL_MB,failgroup,path, OS_MB
from v$asm_disk order by group_number,disk_number;