Unable To Open Database Due To Diskgroup (+RECO and/or +FRA) Used To Multiplex The RedoLogs & Controlfiles & Archivelogs Got Corrupted. (Doc ID 1382372.1)

Last updated on JUNE 20, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 12.1.0.1 [Release 10.2 to 12.1]
Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.

Symptoms

1) +FRA or +RECO diskgroup (External redundancy) got corrupted and cannot be mounted again.

2) +FRA or +RECO diskgroup contains the multiplexed redologs, multiplexed control files and multiplexed archivelog location.

3) Therefore database(s) cannot be opened.

Cause

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