SQL> desc V$ASM_DISK
 Name                             Null?    Type
 -------------------------------- -------- ----------------------
 GROUP_NUMBER                              NUMBER
 DISK_NUMBER                               NUMBER
 COMPOUND_INDEX                            NUMBER
 INCARNATION                               NUMBER
 MOUNT_STATUS                              VARCHAR2(7)
 HEADER_STATUS                             VARCHAR2(12)
 MODE_STATUS                               VARCHAR2(7)
 STATE                                     VARCHAR2(8)
 REDUNDANCY                                VARCHAR2(7)
 LIBRARY                                   VARCHAR2(64)
 OS_MB                                     NUMBER
 TOTAL_MB                                  NUMBER
 FREE_MB                                   NUMBER
 HOT_USED_MB                               NUMBER
 COLD_USED_MB                              NUMBER
 NAME                                      VARCHAR2(30)
 FAILGROUP                                 VARCHAR2(30)
 LABEL                                     VARCHAR2(31)
 PATH                                      VARCHAR2(256)
 UDID                                      VARCHAR2(64)
 PRODUCT                                   VARCHAR2(32)
 CREATE_DATE                               DATE
 MOUNT_DATE                                DATE
 REPAIR_TIMER                              NUMBER
 READS                                     NUMBER
 WRITES                                    NUMBER
 READ_ERRS                                 NUMBER
 WRITE_ERRS                                NUMBER
 READ_TIME                                 NUMBER
 WRITE_TIME                                NUMBER
 BYTES_READ                                NUMBER
 BYTES_WRITTEN                             NUMBER
 PREFERRED_READ                            VARCHAR2(1)
 HASH_VALUE                                NUMBER
 HOT_READS                                 NUMBER
 HOT_WRITES                                NUMBER
 HOT_BYTES_READ                            NUMBER
 HOT_BYTES_WRITTEN                         NUMBER
 COLD_READS                                NUMBER
 COLD_WRITES                               NUMBER
 COLD_BYTES_READ                           NUMBER
 COLD_BYTES_WRITTEN                        NUMBER
 VOTING_FILE                               VARCHAR2(1)
 SECTOR_SIZE                               NUMBER
 FAILGROUP_TYPE                            VARCHAR2(7)

SQL> desc V$ASM_DISKGROUP
 Name                             Null?    Type
 -------------------------------- -------- ----------------------
 GROUP_NUMBER                              NUMBER
 NAME                                      VARCHAR2(30)
 SECTOR_SIZE                               NUMBER
 BLOCK_SIZE                                NUMBER
 ALLOCATION_UNIT_SIZE                      NUMBER
 STATE                                     VARCHAR2(11)
 TYPE                                      VARCHAR2(6)
 TOTAL_MB                                  NUMBER
 FREE_MB                                   NUMBER
 HOT_USED_MB                               NUMBER
 COLD_USED_MB                              NUMBER
 REQUIRED_MIRROR_FREE_MB                   NUMBER
 USABLE_FILE_MB                            NUMBER
 OFFLINE_DISKS                             NUMBER
 COMPATIBILITY                             VARCHAR2(60)
 DATABASE_COMPATIBILITY                    VARCHAR2(60)
 VOTING_FILES                              VARCHAR2(1)