RE: ASM - removing disk from diskgroup question

  • From: <Christopher.Taylor2@xxxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 10 Oct 2012 13:13:20 -0500

Nevermind. I just found it:
http://docs.oracle.com/cd/B19306_01/server.102/b14237/dynviews_1019.htm

HEADER_STATUS

VARCHAR2(12)

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

 *   UNKNOWN - Automatic Storage Management 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 Automatic Storage Management 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 Automatic Storage Management.
 *   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 - Automatic Storage Management disk was not mounted due to a 
conflict
 *   FOREIGN - Disk contains data created by an Oracle product other than ASM. 
This includes datafiles, logfiles, and OCR disks.



Chris

From: Taylor Christopher - Nashville
Sent: Wednesday, October 10, 2012 1:12 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: ASM - removing disk from diskgroup question

This is probably a dumb question but I'll ask anyway.

When you drop a disk from a DISKGROUP in ASM, the HEADER status will show as 
FORMER instead of CANDIDATE, correct?  I assume you can add these disks to 
other DISKGROUPS just like disks that read CANDIDATE?

Chris

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