SL_port.
See
segmented
loop
port
.
SMagent.
The
DS4000
Storage
Manager
optional
Java-based
host-agent
software,
which
can
be
used
on
Microsoft
Windows,
Novell
NetWare,
HP-UX,
and
Solaris
host
systems
to
manage
storage
subsystems
through
the
host
fibre-channel
connection.
SMclient.
The
DS4000
Storage
Manager
client
software,
which
is
a
Java-based
graphical
user
interface
(GUI)
that
is
used
to
configure,
manage,
and
troubleshoot
storage
servers
and
storage
expansion
enclosures
in
a
DS4000
storage
subsystem.
SMclient
can
be
used
on
a
host
system
or
on
a
storage
management
station.
SMruntime.
A
Java
compiler
for
the
SMclient.
SMutil.
The
DS4000
Storage
Manager
utility
software
that
is
used
on
Microsoft
Windows,
HP-UX,
and
Solaris
host
systems
to
register
and
map
new
logical
drives
to
the
operating
system.
In
Microsoft
Windows,
it
also
contains
a
utility
to
flush
the
cached
data
of
the
operating
system
for
a
particular
drive
before
creating
a
FlashCopy.
small
computer
system
interface
(SCSI).
A
standard
hardware
interface
that
enables
a
variety
of
peripheral
devices
to
communicate
with
one
another.
small
form-factor
pluggable
(SFP).
An
optical
transceiver
that
is
used
to
convert
signals
between
optical
fiber
cables
and
switches.
An
SFP
is
smaller
than
a
gigabit
interface
converter
(GBIC).
See
also
gigabit
interface
converter
.
SNMP.
See
Simple
Network
Management
Protocol
and
SNMPv1
.
SNMP
trap
event.
(1)
(2)
An
event
notification
sent
by
the
SNMP
agent
that
identifies
conditions,
such
as
thresholds,
that
exceed
a
predetermined
value.
See
also
Simple
Network
Management
Protocol
.
SNMPv1.
The
original
standard
for
SNMP
is
now
referred
to
as
SNMPv1,
as
opposed
to
SNMPv2,
a
revision
of
SNMP.
See
also
Simple
Network
Management
Protocol
.
SRAM.
See
static
random
access
memory
.
SSA.
See
serial
storage
architecture
.
static
random
access
memory
(SRAM).
Random
access
memory
based
on
the
logic
circuit
know
as
flip-flop.
It
is
called
static
because
it
retains
a
value
as
long
as
power
is
supplied,
unlike
dynamic
random
access
memory
(DRAM),
which
must
be
regularly
refreshed.
It
is
however,
still
volatile,
meaning
that
it
can
lose
its
contents
when
the
power
is
turned
off.
storage
area
network
(SAN).
A
dedicated
storage
network
tailored
to
a
specific
environment,
combining
servers,
storage
products,
networking
products,
software,
and
services.
See
also
fabric
.
Storage
Array
Identifier
(SAI
or
SA
Identifier).
The
Storage
Array
Identifier
is
the
identification
value
used
by
the
DS4000
Storage
Manager
host
software
(SMClient)
to
uniquely
identify
each
managed
storage
server.
The
DS4000
Storage
Manager
SMClient
program
maintains
Storage
Array
Identifier
records
of
previously-discovered
storage
servers
in
the
host
resident
file,
which
allows
it
to
retain
discovery
information
in
a
persistent
fashion.
storage
expansion
enclosure
(EXP).
A
feature
that
can
be
connected
to
a
system
unit
to
provide
additional
storage
and
processing
capacity.
storage
management
station.
A
system
that
is
used
to
manage
the
storage
subsystem.
A
storage
management
station
does
not
need
to
be
attached
to
the
storage
subsystem
through
the
fibre-channel
input/output
(I/O)
path.
storage
partition.
Storage
subsystem
logical
drives
that
are
visible
to
a
host
computer
or
are
shared
among
host
computers
that
are
part
of
a
host
group.
storage
partition
topology.
In
the
DS4000
Storage
Manager
client,
the
Topology
view
of
the
Mappings
window
displays
the
default
host
group,
the
defined
host
group,
the
host
computer,
and
host-port
nodes.
The
host
port,
host
computer,
and
host
group
topological
elements
must
be
defined
to
grant
access
to
host
computers
and
host
groups
using
logical
drive-to-LUN
mappings.
striping.
Splitting
data
to
be
written
into
equal
blocks
and
writing
blocks
simultaneously
to
separate
disk
drives.
Striping
maximizes
performance
to
the
disks.
Reading
the
data
back
is
also
scheduled
in
parallel,
with
a
block
being
read
concurrently
from
each
disk
then
reassembled
at
the
host.
subnet.
An
interconnected
but
independent
segment
of
a
network
that
is
identified
by
its
Internet
Protocol
(IP)
address.
sweep
method.
A
method
of
sending
Simple
Network
Management
Protocol
(SNMP)
requests
for
information
to
all
the
devices
on
a
subnet
by
sending
the
request
to
every
device
in
the
network.
switch.
A
fibre-channel
device
that
provides
full
bandwidth
per
port
and
high-speed
routing
of
data
by
using
link-level
addressing.
switch
group.
A
switch
and
the
collection
of
devices
connected
to
it
that
are
not
in
other
groups.
switch
zoning.
See
zoning
.
synchronous
write
mode.
In
remote
mirroring,
an
option
that
requires
the
primary
controller
to
wait
for
the
116
IBM
TotalStorage
DS4000
EXP700
and
EXP710
Storage
Expansion
Enclosures:
Installation,
User’s,
and
Maintenance
Guide
Summary of Contents for TotalStorage DS4000 EXP710
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