Re: cannot mount ASM disk

Posted by ErmanArslansOracleBlog on Sep 22, 2017; 3:00pm
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/cannot-mount-ASM-disk-tp3539p3560.html

You may be having a disk issue on OS level. A missing disk or a duplicate disk.

Follow this note: KFED.PL for diagnosing - ORA-15063 ORA-15042 ORA-15020 ORA-15033 (Doc ID 1346190.1)

Check kfed.out if there is any missing disks from the diskgroup in question and work with System administrator team to find them.
Check kfed.out if there is any duplicated disks in terms of disk number from the diskgroup in question, see note - 1299866.1.
(You can also upload it to me , so I can check)