Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Controlling VxVM’s View of Multipathed Devices
452 VERITAS Volume Manager Administrator’s Guide
Accessing Volume Devices
As soon as a volume has been created and initialized, it is available for use as a virtual
disk partition by the operating system for the creation of a file system, or by application
programs such as relational databases and other data management software.
Creating a volume in a disk group sets up block and character (raw) device files that can
be used to access the volume:
/dev/vx/dsk/diskgroup/volume block device file for volume
/dev/vx/rdsk/diskgroup/volume character device file for volume
The pathnames include a directory named for the disk group. Use the appropriate device
node to create, mount and repair file systems, and to lay out databases that require raw
partitions.
Controlling VxVM’s View of Multipathed Devices
To control how a device is treated by the Dynamic Multipathing (DMP) feature of VxVM,
use the vxdiskadm command as described in “Disabling and Enabling Multipathing for
Specific Devices” on page 107.
Configuring Cluster Support
Note The cluster functionality feature is not supported by VxVM 4.1 on the HP-UX 11i v3
platform.
The VERITAS Volume Manager software includes an optional cluster feature that enables it
to be used in a cluster environment. The cluster functionality in VERITAS Volume
Manager allows multiple hosts to simultaneously access and manage a set of disks under
VERITAS Volume Manager control. A cluster is a set of hosts sharing a set of disks; each
host is referred to as a node in the cluster.
Note The VERITAS Volume Manager cluster feature requires a license, which can be
obtained from your Customer Support channel.
For information about enabling cluster functionality in VERITAS Volume Manager, refer
to the VERITAS Storage Solutions Getting Started Guide.