It is a best practice to exclude the boot disk from Volume Manager. This allows the shared VMDK files to be configured to use the same name. In order to exclude the disk, run the command vxdmpadm with the name of the boot disk. In the example installation:

[root@cfs01 RHEL6]# vxdmpadm exclude dmpnodename=vmdk0_0

Verify that the boot disk is no longer reported under the VxVM configuration:

[root@cfs01 RHEL6]# vxdisk list
DEVICE        TYPE         DISK         GROUP         STATUS
[root@cfs01 RHEL6]#