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Connect the Front End for a Dual-Controller Storage Center
Dell Compellent
105
Virtual
port
mode
:
Create
one
fault
domain
for
each
fabric
or
directly
connected
FC
server.
Figure 91. Single Controller With Front-End Redundancy
See Also
Connect the Front End for a Dual-Controller Storage Center
Use
Fibre
Channel
and
iSCSI
to
connect
servers
to
the
Storage
Center.
For
each
transport
type,
choose
a
front
‐
end
connectivity
mode
(legacy
mode
or
virtual
port
mode),
and
then
connect
the
servers
in
a
way
that
meets
the
requirements
of
the
chosen
connectivity
mode.
Apply
cable
labels
to
both
ends
of
each
cable.
Connect Fibre Channel Servers
Choose
the
Fibre
Channel
connectivity
option
that
best
suits
the
front
‐
end
redundancy
requirements
and
network
infrastructure.
Legacy Mode with Single-Fabric Fibre Channel
Connect
legacy
mode
Fibre
Channel
to
a
single
fabric
if
only
one
FC
switch
is
available
and
you
want
to
protect
against
controller
failure.
In
this
configuration,
two
fault
domains
are
spread
across
both
controllers.
Each
fault
domain
contains
sets
of
primary
and
reserve
paths
(P1
‐
R1
and
P2
‐
R2).
The
reserved
paths
provide
redundancy
for
single
controller
failure.
This
configuration
is
vulnerable
to
switch
failure.
FC Server
SCSI Server
FC Switch
Ethernet Switch
Controller
Note:
The
cabling
instructions
and
diagrams
in
this
section
are
valid
for
a
particular
IO
card
configuration.
If
the
controllers
you
are
installing
contain
different
IO
cards,
adjust
the
cabling
accordingly.