Oracle Linux 6 - ASM Instances Fail with 4K Sector Size LUN (Doc ID 2211975.1)

Last updated on FEBRUARY 05, 2017

Applies to:

Linux OS - Version Oracle Linux 6.8 with Unbreakable Enterprise Kernel [4.1.12] and later
Linux x86-64

Symptoms

ASM instances shows offline($crsctl stat res -t output) when a asm filesystem is on 4k sector size LUN, even though the LUN's are not added to the disks groups, it shows the status as offline and reports a ORA error with UEK4 kernel.

 

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms