Troubleshooting a multi-node ASMLib installation
(Doc ID 811457.1)
Last updated on FEBRUARY 14, 2022
Applies to:
Linux OS - Version 2.0.0-1 to 2.0.5-1 [Release RHEL4 to OL5]Oracle Cloud Infrastructure - Version N/A and later
Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.
Linux Kernel - Version: 2.0.0-1 to 2.0.5-1
Goal
This procedure will verify that a new or existing Oracle ASMLib installation is configured correctly and operating properly across each node of a cluster. An important supplementary document is the Technical Information section of the Oracle ASMLib homepage and ASMLib Installation Guide. Metalink note references at the end of this document provide additional troubleshooting resources.
A properly installed and fully functional ASMLib installation requires the following:
1. The minimal set of ASMLib packages
2. The ASMLib system must be initially configured and a valid /etc/sysconfig/oracleasm file in place on all nodes
3. The shared devices (LUNs) for the Oracle ASMLib devices must properly partitioned and available with consistent and repeatable naming (across reboots) on all nodes
4. The oracleasm service must start and be running without errors on all nodes
Generic, cut and paste commands provide a 15 minute, step-by-step verification procedure for each of these requirements. Commands in bold are shortcut indicators for experienced system administrators that highlight the most important steps.
Solution
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In this Document
| Goal |
| Solution |
| 1. ASMLib Installation Package checks |
| 2. ASMLib Service Checks |
| 3. ASMLib LUN and Naming Checks |
| 4. Final Service Checks |
| Conclusion |
| References |