V
valid
configuration
A
configuration
that
is
supported.
VDisk
See
virtual
disk
.
virtual
disk
(VDisk)
In
SAN
Volume
Controller,
a
device
that
host
systems
attached
to
the
storage
area
network
(SAN)
recognize
as
a
Small
Computer
System
Interface
(SCSI)
disk.
virtualization
In
the
storage
industry,
a
concept
in
which
a
pool
of
storage
is
created
that
contains
several
disk
subsystems.
The
subsystems
can
be
from
various
vendors.
The
pool
can
be
split
into
virtual
disks
that
are
visible
to
the
host
systems
that
use
them.
virtualized
storage
Physical
storage
that
has
virtualization
techniques
applied
to
it
by
a
virtualization
engine.
virtual
storage
area
network
(VSAN)
A
fabric
within
the
SAN.
vital
product
data
(VPD)
Information
that
uniquely
defines
system,
hardware,
software,
and
microcode
elements
of
a
processing
system.
VLUN
See
managed
disk
.
VPD
See
vital
product
data
.
VSAN
See
virtual
storage
area
network
.
W
WBEM
See
Web-Based
Enterprise
Management
.
Web-Based
Enterprise
Management
(WBEM)
A
tiered,
enterprise-management
architecture
that
was
developed
by
the
Distributed
Management
Task
Force
(DMTF).
This
architecture
provides
the
management
design
framework
that
consists
of
devices,
device
providers,
the
object
manager,
and
the
messaging
protocol
for
the
communication
between
client
applications
and
the
object
manager.
worldwide
node
name
(WWNN)
An
identifier
for
an
object
that
is
globally
unique.
WWNNs
are
used
by
Fibre
Channel
and
other
standards.
worldwide
port
name
(WWPN)
A
unique
64-bit
identifier
that
is
associated
with
a
fibre-channel
adapter
port.
The
WWPN
is
assigned
in
an
implementation-
and
protocol-independent
manner.
WWNN
See
worldwide
node
name
.
WWPN
See
worldwide
port
name
.
Glossary
183
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