"oracleasm listdisk" Does not Show ASM Labeled Disks

(Doc ID 2113995.1)

Last updated on NOVEMBER 13, 2017

Applies to:

Linux OS - Version Oracle Linux 6.0 and later
Oracle Database - Enterprise Edition - Version 12.2.0.1 to 12.2.0.1 [Release 12.2]
Linux x86-64
ASM disks that were previously available are no longer visible after a system reboot. Other systems in the cluster that have not been rebooted still see the disks

Symptoms

 The command "/etc/init.d/oracleasm listdisks" does not show previously available disks after rebooting the systems.  The disk may still be available to other systems in the cluster that have not been rebooted.  This will depend on the cause of the problem.

Changes

 Changes in the system that might cause such an action.

  1. The disk has been removed from presentation to the system from the SAN
  2. Someone removed the label on the disk using the command "oracleasm deletedisk"

Cause

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