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Alejandro Vargas' Blog

  • October 30, 2007

CRS and ASM Fail to Start After Linux Kernel Upgrade

Alejandro Vargas
Technical Leader, ACS Global Delivery, Infrastructure & BigData

The case I'm describing apply to a specific configuration:

RAC 10g R2 on Linux x86_64 with EMC storage using EMC Powerpath and ASM.

It may be not relevant in other configurations, still it provides guidelines to diagnose and solve similar issues. In brief the problem was the following:

CRS failed to start after the Linux Kernel was upgraded from version  2.6.9-22.ELsmp to 2.6.9-55.0.2.ELsmp; ASM also failed to start

The solution steps were:
  • Reinstall EMC Powerpath
  • Reconfigure /etc/sysconfig/rawdevices
  • Install ASMLib rpm's matching the new kernel
This document provide a full description of the case and the solution implementation:



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Comments ( 1 )
  • Eric Grancher Wednesday, October 31, 2007
    thank you Alejandro for your always very interesting blog entries.
    One question: is the system that you mention a production system? Is powerpath supported for RHEL4U5?
    regards,
    eric
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