VERITAS Volume Manager 3.1 Administrator's Guide

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disk group ID Auniqueidentifier
used to identify a disk group.
disk ID A universally unique
identifier that is given to each disk
and can be used to identify the
disk, even if it is moved.
disk media name A logical or
administrative name chosen for
the disk, such as disk03. The term
disk name is also used to refer to
the disk media name.
disk media record A
configuration record that identifies
a particular disk, by disk ID, and
gives that disk a logical (or
administrative) name.
dissociate The process by which
any link that exists between two
Volume Manager objects is
removed.For example,dissociating
a subdisk from a plex removes the
subdisk from the plex and adds the
subdisk to the free space pool.
dissociated plex A plex
dissociated from a volume.
dissociated subdisk A subdisk
dissociated from a plex.
distributed lock manager A
lock manager that runs on
different systems and ensures
consistent access to distributed
resources.
enabled path A path to a disk
that is available for I/O.
encapsulation A process that
converts existing partitions on a
specified disk to volumes. If any
partitions contain file systems,
/etc/vfstab entries are modified
so that the file systems are
mounted on volumes instead.
Encapsulation is not applicable on
some systems.
file system A collection of files
organized together into a
structure. The UNIX file system is
a hierarchical structure consisting
of directories and files.
free space An area of a disk
under VxVM control that is not
allocated to any subdisk or
reserved for use by any other
Volume Manager object.
free subdisk Asubdisk thatis not
associated with any plex and has
an empty putil[0] field.