Why do OFFLINED DISKS Become ONLINE Automatically in NORMAL redundant diskgroup?

(Doc ID 1630542.1)

Last updated on MARCH 20, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Goal

1. After a restart of ASM instance, why does our NORMAL redundant diskgroup bring up all failuregroup automatically after a disk failure?

Please don't mistake FAILUREGROUPS and DISKGROUPS.

2. When they FORCE MOUNT the diskgroup, the data was not usable for restore from one of the two failgroups, why?

Solution

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