"Multipath: error getting device" seen in OS log causes ASM/ASMlib to shutdown by itself
Last updated on APRIL 17, 2018
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 to 18.104.22.168.0 [Release 10.1 to 11.2]
***Checked for relevance on 16-May-2013***
If you are using the Device-Mapper Multipath feature of Red Hat Enterprise Linux 5.2 and are seeing "multipath: error getting device" error messages in your system log it could cause ASM to shut down if you are using ASMlib with multipathing.
In the ASM alert log - ASMlib will show that it cannot open the devices -
ERROR: kfkOsmIdent:asm_open(): asm_erc:1 msg:Operation not permitted pid:22947
ORA-15186: ASMLIB error function = [kfkOsmIdent:asm_open], error = , mesg = [Operation not permitted]
The ASM alert log with also report since ASMlib couldn't open the device that ASM cannot mount the diskgroup:
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DGROUP2"
ORA-15080: synchronous I/O operation to a disk failed
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