[root@mytest1 /]# /etc/init.d/oracleasm createdisk ASM_DISK1 /dev/emcpowera1
Marking disk “/dev/emcpowera1” as an ASM disk: asmtool: Device “/dev/emcpowera1” is not a partition
[FAILED]
Symptom above looks familiar? This is non Oracle ASMlib issue, but EMCPOWER PATH issue.
Applies to:
Linux x86 & Linux x86-64
Symptom:
Error shown above even though the disk is properly formatted and has the requisite partition.
Cause:
EMC Powerpath Versions 5.0.1 and 5.1 do not properly support the i/o calls that oracleasm makes.