HEADER_STATUS

VARCHAR2(12)

Per-instance status of the disk as seen by discovery:

• UNKNOWN - Oracle ASM disk header has not been read

• CANDIDATE - Disk is not part of a disk group and may be added to a disk group with the ALTER DISKGROUP statement

• INCOMPATIBLE - Version number in the disk header is not compatible with the Oracle ASM software version

• PROVISIONED - Disk is not part of a disk group and may be added to a disk group with the ALTER DISKGROUP statement. The PROVISIONED header status is different from the CANDIDATE header status in that PROVISIONED implies that an additional platform-specific action has been taken by an administrator to make the disk available for Oracle ASM.

• MEMBER - Disk is a member of an existing disk group. No attempt should be made to add the disk to a different disk group. The ALTER DISKGROUP statement will reject such an addition unless overridden with the FORCE option.

• FORMER - Disk was once part of a disk group but has been dropped cleanly from the group. It may be added to a new disk group with the ALTER DISKGROUP statement.

• CONFLICT - Oracle ASM disk was not mounted due to a conflict

• FOREIGN - Disk contains data created by an Oracle product other than Oracle ASM. This includes data files, logfiles, and OCR disks.