machine
can
use
this
link
to
place
a
call
to
IBM
or
to
another
service
provider
when
service
is
required.
With
access
to
the
machine,
service
personnel
can
perform
service
tasks,
such
as
viewing
error
and
problem
logs
or
initiating
trace
and
dump
retrievals.
cascading
The
process
of
connecting
two
or
more
fibre-channel
hubs
or
switches
together
to
increase
the
number
of
ports
or
extend
distances.
CIM
See
Common
Information
Model
.
CIM
object
manager
(CIMOM)
The
common
conceptual
framework
for
data
management
that
receives,
validates,
and
authenticates
the
CIM
requests
from
the
client
application.
It
then
directs
the
requests
to
the
appropriate
component
or
service
provider.
CIMOM
See
CIM
object
manager
.
class
The
definition
of
an
object
within
a
specific
hierarchy.
A
class
can
have
properties
and
methods
and
can
serve
as
the
target
of
an
association.
CLI
See
command
line
interface
.
client
A
computer
system
or
process
that
requests
a
service
of
another
computer
system
or
process
that
is
typically
referred
to
as
a
server.
Multiple
clients
can
share
access
to
a
common
server.
client
application
A
storage
management
program
that
initiates
Common
Information
Model
(CIM)
requests
to
the
CIM
agent
for
the
device.
cluster
In
SAN
Volume
Controller,
up
to
four
pairs
of
nodes
that
provide
a
single
configuration
and
service
interface.
command
line-interface
(CLI)
A
type
of
computer
interface
in
which
the
input
command
is
a
string
of
text
characters.
Common
Information
Model
(CIM)
A
set
of
standards
developed
by
the
Distributed
Management
Task
Force
(DMTF).
CIM
provides
a
conceptual
framework
for
storage
management
and
an
open
approach
to
the
design
and
implementation
of
storage
systems,
applications,
databases,
networks,
and
devices.
concurrent
maintenance
Service
that
is
performed
on
a
unit
while
it
is
operational.
In
SAN
Volume
Controller,
the
ability
for
one
node
in
the
cluster
to
be
turned
off
for
maintenance
without
interrupting
access
to
the
VDisk
data
provided
by
the
cluster.
configuration
node
A
node
that
acts
as
the
focal
point
for
configuration
commands
and
manages
the
data
that
describes
the
cluster
configuration.
connected
In
a
Global
Mirror
relationship,
pertaining
to
the
status
condition
that
occurs
when
two
clusters
can
communicate.
consistency
group
A
group
of
copy
relationships
between
virtual
disks
that
are
managed
as
a
single
entity.
Glossary
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