Disks of Dismounted Diskgroup Are Still Hold / Lock By Oracle Process on 188.8.131.52
(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 184.108.40.206 to 220.127.116.11 [Release 11.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.
You are on 18.104.22.168 or have the fix for the same issue on 22.214.171.124 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
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In this Document