Cannot Start Asm Ora-15063/ORA-15183 (Doc ID 340519.1)

Last updated on DECEMBER 01, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.2 to 11.1.0.7 [Release 10.1 to 11.1]
Linux OS - Version 2.6.9-67.0.0.0.1.EL to 2.6.18-92.1.6.0.2.el5 [Release OL4U6 to OL5U2]
Linux x86
Red Hat Enterprise Linux Advanced Server x86-64 (AMD Opteron Architecture)

Symptoms

ASM1 RAC Instance could not mount the diskgroup(s) due to the next errors:

SQL> startup
ASM instance started
Total System Global Area 130023424 bytes
Fixed Size 2019032 bytes
Variable Size 102838568 bytes
ASM Cache 25165824 bytes
ORA-15032: not all alterations performed
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA"

Cause

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