IBM TOTAL STORAGE DS8000 User Manual
Page 368
Simple
Network
Management
Protocol
(SNMP)
In
the
Internet
suite
of
protocols,
a
network
management
protocol
that
is
used
to
monitor
routers
and
attached
networks.
SNMP
is
an
application
layer
protocol.
Information
on
devices
managed
is
defined
and
stored
in
the
application’s
Management
Information
Base
(MIB).
(GC)
See
also
management
information
base.
simplex
volume
A
volume
that
is
not
part
of
a
FlashCopy,
XRC,
or
PPRC
volume
pair.
Single-Byte
Command
Code
Sets
Connection
(SBCON)
The
ANSI
standard
for
the
ESCON
I/O
interface.
small
computer
system
interface
(SCSI)
A
standard
hardware
interface
that
enables
a
variety
of
peripheral
devices
to
communicate
with
one
another.
(GC)
smart
relay
host
A
relay
or
gateway
that
has
the
capability
to
correct
addressing
problems.
SMIT
See
System
Management
Interface
Tool.
SMP
See
symmetrical
multiprocessor.
SNMP
See
Simple
Network
Management
Protocol.
SNMP
agent
A
server
process
that
resides
on
a
network
node
and
is
responsible
for
communicating
with
managers
regarding
that
node.
The
node
is
represented
as
a
managed
object,
which
has
various
fields
or
variables
that
are
defined
in
the
appropriate
MIB.
SNMP
manager
A
managing
system
that
runs
a
managing
application
or
suite
of
applications.
These
applications
depend
on
Management
Information
Base
(MIB)
objects
for
information
that
resides
on
the
managed
system.
Managers
generate
requests
for
this
MIB
information,
and
an
SNMP
agent
on
the
managed
system
responds
to
these
requests.
A
request
can
either
be
the
retrieval
or
modification
of
MIB
information.
software
transparency
Criteria
applied
to
a
processing
environment
that
states
that
changes
do
not
require
modifications
to
the
host
software
in
order
to
continue
to
provide
an
existing
function.
source
device
One
of
the
devices
in
a
dual-copy
or
remote-copy
volume
pair.
All
channel
commands
to
the
logical
volume
are
directed
to
the
source
device.
The
data
on
the
source
device
is
duplicated
on
the
target
device.
See
also
target
device.
spare
A
disk
drive
on
the
DS8000
that
can
replace
a
failed
disk
drive.
A
spare
can
be
predesignated
to
allow
automatic
dynamic
sparing.
Any
data
preexisting
on
a
disk
drive
that
is
invoked
as
a
spare
is
destroyed
by
the
dynamic
sparing
copy
process.
spatial
reuse
A
feature
of
serial
storage
architecture
that
enables
a
device
adapter
loop
to
support
many
simultaneous
read/write
operations.
See
also
serial
storage
architecture.
SSID
See
subsystem
identifier.
SSR
See
service
support
representative.
stacked
status
For
zSeries,
the
condition
when
the
control
unit
is
in
a
holding
status
for
the
channel,
and
the
last
time
the
control
unit
attempted
to
present
the
status,
the
channel
responded
with
the
stack-status
control.
stage
operation
The
operation
of
reading
data
from
the
physical
disk
drive
into
the
cache.
staging
To
move
data
from
an
offline
or
low-priority
device
back
to
an
online
or
higher
priority
device,
usually
on
demand
of
the
system
or
on
request
of
the
user.
standard
volume
A
volume
that
emulates
one
of
several
zSeries
volume
types,
including
3390-2,
3390-3,
3390-9,
3390-2
(3380-track
mode),
or
3390-3
(3380-track
mode),
by
presenting
the
same
number
of
cylinders
and
capacity
to
the
host
as
provided
by
the
native
zSeries
volume
type
of
the
same
name.
STI
See
self-timed
interface.
348
IBM
TotalStorage
DS8000:
Messages
Reference