Oracle Linux 7: ASMLib-Managed Disks on Multipathed iSCSI Targets are not Discovered after Server Reboot (Doc ID 2214152.1)

Last updated on MAY 22, 2017

Applies to:

Linux OS - Version Oracle Linux 7.3 and later
Linux x86-64
Oracle Linux 7
Oracle ASMLib
Multipath
iSCSI

Symptoms

Oracle Real Application Clusters (RAC) servers run on Oracle Linux 7 and utilise ASMLib-managed iSCSI multipathed disks.
Upon server reboot, Oracle ASMLib disks are not automatically discovered at boot time causing Oracle Cluster Ready Services (CRS) to fail to start.
ASM disks are, however, correctly discovered when manually running the oracleasm scandisks command soon after server reboot.

Changes

Following is the oracleasm configuration

Cause

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