S
SAN.
See
storage
area
network
.
SCSI.
See
Small
Computer
Systems
Interface
.
Small
Computer
System
Interface
(SCSI).
A
standard
hardware
interface
that
enables
a
variety
of
peripheral
devices
to
communicate
with
one
another.
SNMP.
See
Simple
Network
Management
Protocol
.
storage
area
network
(SAN).
A
network
whose
primary
purpose
is
the
transfer
of
data
between
computer
systems
and
storage
elements
and
among
storage
elements.
A
SAN
consists
of
a
communication
infrastructure,
which
provides
physical
connections,
and
a
management
layer,
which
organizes
the
connections,
storage
elements,
and
computer
systems
so
that
data
transfer
is
secure
and
robust.
(S)
IBM
Subsystem
Device
Driver
(SDD).
An
IBM
pseudo
device
driver
designed
to
support
the
multipath
configuration
environments
in
IBM
products.
U
uninterruptible
power
supply.
A
device
connected
between
a
computer
and
its
power
source
that
protects
the
computer
against
blackouts,
brownouts,
and
power
surges.
The
uninterruptible
power
supply
contains
a
power
sensor
to
monitor
the
supply
and
a
battery
to
provide
power
until
an
orderly
shutdown
of
the
system
can
be
performed.
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.
W
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
associated
with
a
fibre-channel
adapter
port.
The
WWPN
is
assigned
in
an
implementation-
and
protocol-independent
manner.
Glossary
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