Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

indicates that the disk must be cleaned up before the disk can be initialized for
use with VxVM.
To remove a FORMER ASM disk from ASM control for use with VxVM
◆
Clean the disk with the dd command to remove all ASM identification
information on it. For example:
dd if=/dev/zero of=/dev/rdsk/<wholedisk|partition> count=1 bs=1024
Where wholedisk is a disk name in the format: cxtydz
Where partition is a partition name in the format:cxtydzsn
To view the ASM disks
◆
You can use either of the following commands to display ASM disks:
The vxdisk list command displays the disk type as ASM.
# vxdisk list
DEVICE TYPE DISK GROUP STATUS
Disk_0s2 auto:LVM - - LVM
Disk_1 auto:ASM - - ASM
EVA4K6K0_0 auto - - online
EVA4K6K0_1 auto - - online
The vxdisk classify command classifies and displays ASM disks as Oracle
ASM.
# vxdisk -d classify disk=c1t0d5
device: c1t0d5
status: CLASSIFIED
type: Oracle ASM
groupid: -
hostname: -
domainid: -
centralhost: -
Specify the -f option to the vxdisk classify command, to perform a full
scan of the OS devices.
Administering disks
Veritas Volume Manager co-existence with Oracle Automatic Storage Management (ASM) disks
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