Chapter 4 Connect the Front End
102
Storage Center SC8000 Controller Deployment Guide
Fibre Channel Zoning
When
using
Fibre
Channel
for
front
‐
end
connectivity,
zones
must
be
established
to
ensure
that
storage
is
visible
to
the
servers.
Plan
the
front
end
connectivity
using
zoning
concepts
discussed
in
this
section
before
starting
to
cable
the
controller.
Zoning
can
be
applied
to
either
the
ports
on
switches
or
to
the
World
Wide
Names
(WWNs)
of
the
end
devices.
Zones
should
be
created
using
a
single
initiator
(using
physical
WWNs)
and
multiple
targets
(using
virtual
WWNs).
In
a
dual
‐
controller
configuration,
the
virtual
WWNs
from
each
controller
must
be
included
in
the
zone
with
each
host’s
WWN.
WWN Zoning Guidelines
When
WWN
zoning
is
configured,
a
device
may
reside
on
any
port
or
change
physical
ports
and
still
be
visible
because
the
switch
is
seeking
a
WWN.
Port Zoning Guidelines
When
port
zoning
is
configured,
only
specific
switch
ports
are
visible.
If
a
storage
device
is
moved
to
a
different
port
that
is
not
part
of
the
zone,
it
is
no
longer
visible
to
the
other
ports
in
the
zone.
Note:
For
virtual
port
mode,
WWN
zoning
is
recommended.
Connectivity Type
Guidelines
Legacy
mode
• Include
all
Storage
Center
front
‐
end
WWNs
or
ports
in
a
single
zone.
• Create
server
zones
that
contain
a
single
initiator
and
multiple
targets,
and
which
include
the
server
HBA
WWN.
Virtual
port
mode
• Include
all
Storage
Center
virtual
WWNs
in
a
single
zone.
• Include
all
Storage
Center
physical
WWNs
in
a
single
zone.
• Create
server
zones
that
contain
a
single
initiator
and
multiple
targets
(Storage
Center
virtual
WWNs),
and
which
include
the
server
HBA
WWN.
Fibre
Channel
replication
• Include
all
Storage
Center
physical
WWNs
from
System
A
and
B
in
a
single
zone.
• Include
all
Storage
Center
physical
WWNs
of
System
A
and
the
virtual
WWNs
of
System
B
on
the
particular
Fabric.
• Include
all
Storage
Center
physical
WWNs
of
System
B
and
the
virtual
WWNs
of
System
A
on
the
particular
Fabric.
Note:
Some
ports
may
not
be
used
or
dedicated
for
replication,
however
ports
that
are
used
must
be
in
these
zones.
Connectivity Type
Guidelines
Legacy
mode
or
virtual
port
mode
• Include
all
Storage
Center
front
‐
end
ports.
• Create
server
zones
which
contain
all
Storage
Center
front
‐
end
ports
and
a
single
server
port.
Fibre
Channel
replication
Include
all
Storage
Center
front
‐
end
ports
from
System
A
and
System
B
in
a
single
zone.
