ORA-15063 :: UDEV rules wrong mapping (Doc ID 1913716.1)

Last updated on APRIL 26, 2016

Applies to:

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

Symptoms

While mounting the diskgroup ,it was failing with below errors, 

Fri Aug 01 13:56:48 2014
SQL> ALTER DISKGROUP ALL MOUNT
NOTE: Diskgroups listed in ASM_DISKGROUPS are
  data
NOTE: cache registered group DATA number=1 incarn=0x228ac17d
NOTE: cache began mount (first) of group DATA number=1 incarn=0x228ac17d
ERROR: no read quorum in group: required 2, found 0 disks
NOTE: cache dismounting (clean) group 1/0x228AC17D (DATA)
NOTE: messaging CKPT to quiesce pins Unix process pid: 9148, image: oracle@frscforpo10 (TNS V1-V3)
NOTE: dbwr not being msg'd to dismount
NOTE: lgwr not being msg'd to dismount
NOTE: cache dismounted group 1/0x228AC17D (DATA)
NOTE: cache ending mount (fail) of group DATA number=1 incarn=0x228ac17d
NOTE: cache deleting context for group DATA 1/0x228ac17d
Fri Aug 01 13:56:48 2014
NOTE: No asm libraries found in the system
ASM Health Checker found 1 new failures
GMON dismounting group 1 at 2 for pid 17, osid 9148
ERROR: diskgroup DATA was not mounted
ORA-15032: not all alterations performed
ORA-15017: diskgroup "DATA" cannot be mounted
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA"
ERROR: ALTER DISKGROUP ALL MOUNT

Changes

 System administrattor updated udev rules

Cause

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