Last updated on OCTOBER 31, 2016
Applies to:Oracle Database - Enterprise Edition - Version 126.96.36.199 to 188.8.131.52 [Release 11.1 to 11.2]
Information in this document applies to any platform.
You are on 184.108.40.206 or have the fix for the same issue on 220.127.116.11 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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