Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

For example, to create a disk group with version 120 that can be imported by a
system running VxVM 4.1, use the following command:
# vxdg -T 120 init newdg newdg01=c0t3d0
This creates a disk group, newdg, which can be imported by Veritas Volume
Manager 4.1. Note that while this disk group can be imported on the VxVM 4.1
system, attempts to use features from Veritas Volume Manager 5.0 and later
releases will fail.
Managing the configuration daemon in VxVM
The VxVM configuration daemon (vxconfigd) provides the interface between
VxVM commands and the kernel device drivers. vxconfigd handles configuration
change requests from VxVM utilities, communicates the change requests to the
VxVM kernel, and modifies configuration information stored on disk. vxconfigd
also initializes VxVM when the system is booted.
The vxdctl command is the command-line interface to the vxconfigd daemon.
You can use vxdctl to:
Control the operation of the vxconfigd daemon.
Change the system-wide definition of the default disk group.
In VxVM 4.0 and later releases, disk access records are no longer stored in the
/etc/vx/volboot file. Non-persistent disk access records are created by scanning
the disks at system startup. Persistent disk access records for simple and nopriv
disks are permanently stored in the /etc/vx/darecs file in the root file system.
The vxconfigd daemon reads the contents of this file to locate the disks and the
configuration databases for their disk groups.
The /etc/vx/darecs file is also used to store definitions of foreign devices that
are not autoconfigurable. Such entries may be added by using the vxddladm
addforeign command.
See the vxddladm(1M) manual page.
If your system is configured to use Dynamic Multipathing (DMP), you can also
use vxdctl to:
Reconfigure the DMP database to include disk devices newly attached to, or
removed from the system.
Create DMP device nodes in the /dev/vx/dmp and /dev/vx/rdmp directories.
Creating and administering disk groups
Managing the configuration daemon in VxVM
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