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Disks of Dismounted Diskgroup Are Still Hold / Lock By Oracle Process on 11.2.0.3 (Doc ID 1485163.1)

Last updated on JULY 06, 2021

Applies to:

Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 11.1.0.7 to 11.2.0.3 [Release 11.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

You are on 11.2.0.3 or have the fix for the same issue on 11.2.0.2 as described in MOS Doc ID 1306574.1

Still, you are seeing that the disks of the dismounted diskgroup are held by processes.

This is not allowing you to copy the VGs of the dismounted diskgroup

 

In the ASM alert.log you might see the followings

ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: -1
Additional information: 4096
WARNING: Read Failed. group:0 disk:5 AU:0 offset:0 size:4096

and in the OS logs

May 16 12:59:12 myoda1 kernel: Buffer I/O error on device dm-35, logical block 8

 

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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