possibility
of
interactions
between
system
adapters
in
switched
configurations.
You
can
establish
the
zones
by
using
either
of
two
zoning
methods:
v
Port
number
v
Worldwide
port
name
(WWPN)
You
can
configure
switch
ports
and
hub
ports
that
are
attached
to
the
storage
unit
in
more
than
one
zone.
This
enables
multiple
system
adapters
to
share
access
to
the
storage
unit
fibre
channel
ports.
Shared
access
to
an
storage
unit
fibre
channel
port
might
come
from
host
platforms
that
support
a
combination
of
bus
adapter
types
and
the
operating
systems.
For
information
about
host
systems,
operating
system
levels,
host
bus
adapters,
cables,
and
fabric
support
that
IBM
supports,
see
the
DS6000
series
Interoperability
Matrix
at:
http://www.ibm.com/servers/storage/disk/ds6000/interop.html
.
Fibre
channel
host
attachments
Fibre
channel
technology
supports
increased
performance,
scalability,
availability,
and
distance
for
attaching
storage
subsystems
to
network
servers.
Fibre
channel
technology
supports
applications
that
require
large
amounts
of
disk
storage
that
is
shared
by
two
or
more
servers.
You
can
use
fibre
channel
to
connect
large
amounts
of
disk
storage
to
a
server
or
cluster
of
servers.
The
DS6000
series
provides
a
fibre
channel
connection
when
you
install
a
fibre-channel
SFP
(shortwave
or
longwave)
in
the
DS6800
model.
Fibre
channel
architecture
provides
a
variety
of
communication
protocols
on
the
storage
server.
The
servers
that
are
interconnected
are
referred
to
as
nodes
.
Each
node
has
one
or
more
ports.
A
storage
unit
is
a
node
in
a
fibre
channel
network.
Each
port
on
a
DS6800
fibre
channel
SFP
is
a
fibre
channel
port.
A
host
is
also
a
node
in
a
fibre
channel
network.
Each
port
attaches
to
a
serial-transmission
medium
that
provides
duplex
communication
with
the
node
at
the
other
end
of
the
medium.
There
are
three
basic
topologies
supported
by
fibre
channel
interconnection
architecture:
Point-to-point
You
can
use
the
point-to-point
topology
to
interconnect
ports
directly.
Switched
fabric
The
switched-fabric
topology
provides
the
necessary
switching
functions
to
support
communication
between
multiple
nodes.
You
can
use
a
fabric
to
support
communication
between
multiple
nodes.
Arbitrated
loop
A
fibre
channel
arbitrated
loop
(FC-AL)
is
a
ring
topology
where
two
or
more
ports
can
be
interconnected.
You
can
use
the
FC-AL
to
interconnect
up
to
127
hosts
on
a
loop.
An
arbitrated
loop
may
be
connected
to
a
fabric,
known
as
a
public
loop.
When
the
loop
is
not
connected
to
a
fabric,
it
is
referred
to
as
a
private
loop.
Attaching
a
DS6000
series
to
an
open-systems
host
with
fibre
channel
adapters
You
can
attach
a
DS6000
series
to
an
open-systems
host
with
fibre-channel
adapters.
20
Introduction
and
Planning
Guide
Summary of Contents for System storage DS6000 Series
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