Disks shown in asmtool but not in v$asm_disk view on Windows

(Doc ID 1069456.1)

Last updated on JULY 05, 2017

Applies to:

Oracle Server - Enterprise Edition - Version: to - Release: 10.1 to 11.1
Microsoft Windows x64 (64-bit)
Microsoft Windows x64 (64-bit) - Version: 2008 R2


In windows environment, found a disk is shown in asmtool.

ORCLDISKFLBACK0 \Device\Harddisk2\Partition1 173114M

However, when querying v$asm_disk view, it's not present.

Oradim and kfod could not discover the disk either.

oradim -ex device query
kfod status=true disks=all op=disks

This caused the diskgroup cannot be mounted.


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