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

■ Displaying disk information
■ Controlling Powerfail Timeout
About disk management
Veritas Volume Manager (VxVM) allows you to place disks under VxVM control,
to initialize disks, and to remove and replace disks.
Note: Most VxVM commands require superuser or equivalent privileges.
Disks that are controlled by the LVM subsystem cannot be used directly as VxVM
disks, but the disks can be converted so that their volume groups and logical
volumes become VxVM disk groups and volumes.
Note: This release only supports the conversion of LVM version 1 volume groups
to VxVM. It does not support the conversion of LVM version 2 volume groups.
See the Veritas Volume Manager Migration Guide.
The dynamic multipathing (DMP) feature of VxVM is used to administer
multiported disk arrays.
See “How DMP works” on page 137.
Disk devices
When performing disk administration, it is important to understand the difference
between a disk name and a device name.
The disk name (also known as a disk media name) is the symbolic name assigned
to a VM disk. When you place a disk under VxVM control, a VM disk is assigned
to it. The disk name is used to refer to the VM disk for the purposes of
administration. A disk name can be up to 31 characters long. When you add a disk
to a disk group, you can assign a disk name or allow VxVM to assign a disk name.
The default disk name is diskgroup## where diskgroup is the name of the disk
group to which the disk is being added, and ## is a sequence number. Your system
may use device names that differ from those given in the examples.
The device name (sometimes referred to as devname or disk access name) defines
the name of a disk device as it is known to the operating system.
Administering disks
About disk management
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