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Major and Minor Number Inconsistency after oracleasm creatdisk for PowerPath (Doc ID 420841.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version 2.4 to 2.4
Linux x86
Linux x86-64


You create new asm disks using "oracleasm createdisk" but the major/minor numbers used for asm disks are inconsistent across the cluster nodes. For example on node 1:

# ls -l /dev/oracleasm/disks/*
brw-rw----    1 oracle   dba      232, 209 Mar 24 21:45 DISK01
brw-rw----    1 oracle   dba      233,   1 Mar 24 13:15 DISK02

and on node 2:

# ls -l /dev/oracleasm/disks/*
brw-rw----    1 oracle   dba       68,  81 Mar 24 13:18 DISK01
brw-rw----    1 oracle   dba       68,  33 Mar 24 13:18 DISK02


New oracleasm disks are defined using:

       # /etc/init.d/oracleasm createdisk DISK01 /dev/emcpowern1

or similar.


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